2023/11/16 - AWS Transfer Family - 9 updated api methods
Changes Introduced S3StorageOptions for servers to enable directory listing optimizations and added Type fields to logical directory mappings.
{'HomeDirectoryMappings': {'Type': 'FILE | DIRECTORY'}}
Used by administrators to choose which groups in the directory should have access to upload and download files over the enabled protocols using Transfer Family. For example, a Microsoft Active Directory might contain 50,000 users, but only a small fraction might need the ability to transfer files to the server. An administrator can use CreateAccess to limit the access to the correct set of users who need this ability.
See also: AWS API Documentation
Request Syntax
client.create_access(
HomeDirectory='string',
HomeDirectoryType='PATH'|'LOGICAL',
HomeDirectoryMappings=[
{
'Entry': 'string',
'Target': 'string',
'Type': 'FILE'|'DIRECTORY'
},
],
Policy='string',
PosixProfile={
'Uid': 123,
'Gid': 123,
'SecondaryGids': [
123,
]
},
Role='string',
ServerId='string',
ExternalId='string'
)
string
The landing directory (folder) for a user when they log in to the server using the client.
A HomeDirectory example is /bucket_name/home/mydirectory .
Note
The HomeDirectory parameter is only used if HomeDirectoryType is set to PATH .
string
The type of landing directory (folder) that you want your users' home directory to be when they log in to the server. If you set it to PATH , the user will see the absolute Amazon S3 bucket or Amazon EFS path as is in their file transfer protocol clients. If you set it to LOGICAL , you need to provide mappings in the HomeDirectoryMappings for how you want to make Amazon S3 or Amazon EFS paths visible to your users.
Note
If HomeDirectoryType is LOGICAL , you must provide mappings, using the HomeDirectoryMappings parameter. If, on the other hand, HomeDirectoryType is PATH , you provide an absolute path using the HomeDirectory parameter. You cannot have both HomeDirectory and HomeDirectoryMappings in your template.
list
Logical directory mappings that specify what Amazon S3 or Amazon EFS paths and keys should be visible to your user and how you want to make them visible. You must specify the Entry and Target pair, where Entry shows how the path is made visible and Target is the actual Amazon S3 or Amazon EFS path. If you only specify a target, it is displayed as is. You also must ensure that your Identity and Access Management (IAM) role provides access to paths in Target . This value can be set only when HomeDirectoryType is set to LOGICAL .
The following is an Entry and Target pair example.
[ { "Entry": "/directory1", "Target": "/bucket_name/home/mydirectory" } ]
In most cases, you can use this value instead of the session policy to lock down your user to the designated home directory ("chroot "). To do this, you can set Entry to / and set Target to the HomeDirectory parameter value.
The following is an Entry and Target pair example for chroot .
[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]
(dict) --
Represents an object that contains entries and targets for HomeDirectoryMappings .
The following is an Entry and Target pair example for chroot .
[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]
Entry (string) -- [REQUIRED]
Represents an entry for HomeDirectoryMappings .
Target (string) -- [REQUIRED]
Represents the map target that is used in a HomeDirectoryMapEntry .
Type (string) --
Specifies the type of mapping. Set the type to FILE if you want the mapping to point to a file, or DIRECTORY for the directory to point to a directory.
Note
By default, home directory mappings have a Type of DIRECTORY when you create a Transfer Family server. You would need to explicitly set Type to FILE if you want a mapping to have a file target.
string
A session policy for your user so that you can use the same Identity and Access Management (IAM) role across multiple users. This policy scopes down a user's access to portions of their Amazon S3 bucket. Variables that you can use inside this policy include ${Transfer:UserName} , ${Transfer:HomeDirectory} , and ${Transfer:HomeBucket} .
Note
This policy applies only when the domain of ServerId is Amazon S3. Amazon EFS does not use session policies.
For session policies, Transfer Family stores the policy as a JSON blob, instead of the Amazon Resource Name (ARN) of the policy. You save the policy as a JSON blob and pass it in the Policy argument.
For an example of a session policy, see Example session policy .
For more information, see AssumeRole in the Security Token Service API Reference .
dict
The full POSIX identity, including user ID (Uid ), group ID (Gid ), and any secondary groups IDs (SecondaryGids ), that controls your users' access to your Amazon EFS file systems. The POSIX permissions that are set on files and directories in your file system determine the level of access your users get when transferring files into and out of your Amazon EFS file systems.
Uid (integer) -- [REQUIRED]
The POSIX user ID used for all EFS operations by this user.
Gid (integer) -- [REQUIRED]
The POSIX group ID used for all EFS operations by this user.
SecondaryGids (list) --
The secondary POSIX group IDs used for all EFS operations by this user.
(integer) --
string
[REQUIRED]
The Amazon Resource Name (ARN) of the Identity and Access Management (IAM) role that controls your users' access to your Amazon S3 bucket or Amazon EFS file system. The policies attached to this role determine the level of access that you want to provide your users when transferring files into and out of your Amazon S3 bucket or Amazon EFS file system. The IAM role should also contain a trust relationship that allows the server to access your resources when servicing your users' transfer requests.
string
[REQUIRED]
A system-assigned unique identifier for a server instance. This is the specific server that you added your user to.
string
[REQUIRED]
A unique identifier that is required to identify specific groups within your directory. The users of the group that you associate have access to your Amazon S3 or Amazon EFS resources over the enabled protocols using Transfer Family. If you know the group name, you can view the SID values by running the following command using Windows PowerShell.
Get-ADGroup -Filter {samAccountName -like "*YourGroupName* *"} -Properties * | Select SamAccountName,ObjectSid
In that command, replace YourGroupName with the name of your Active Directory group.
The regular expression used to validate this parameter is a string of characters consisting of uppercase and lowercase alphanumeric characters with no spaces. You can also include underscores or any of the following characters: =,.@:/-
dict
Response Syntax
{
'ServerId': 'string',
'ExternalId': 'string'
}
Response Structure
(dict) --
ServerId (string) --
The identifier of the server that the user is attached to.
ExternalId (string) --
The external identifier of the group whose users have access to your Amazon S3 or Amazon EFS resources over the enabled protocols using Transfer Family.
{'S3StorageOptions': {'DirectoryListingOptimization': 'ENABLED | DISABLED'}}
Instantiates an auto-scaling virtual server based on the selected file transfer protocol in Amazon Web Services. When you make updates to your file transfer protocol-enabled server or when you work with users, use the service-generated ServerId property that is assigned to the newly created server.
See also: AWS API Documentation
Request Syntax
client.create_server(
Certificate='string',
Domain='S3'|'EFS',
EndpointDetails={
'AddressAllocationIds': [
'string',
],
'SubnetIds': [
'string',
],
'VpcEndpointId': 'string',
'VpcId': 'string',
'SecurityGroupIds': [
'string',
]
},
EndpointType='PUBLIC'|'VPC'|'VPC_ENDPOINT',
HostKey='string',
IdentityProviderDetails={
'Url': 'string',
'InvocationRole': 'string',
'DirectoryId': 'string',
'Function': 'string',
'SftpAuthenticationMethods': 'PASSWORD'|'PUBLIC_KEY'|'PUBLIC_KEY_OR_PASSWORD'|'PUBLIC_KEY_AND_PASSWORD'
},
IdentityProviderType='SERVICE_MANAGED'|'API_GATEWAY'|'AWS_DIRECTORY_SERVICE'|'AWS_LAMBDA',
LoggingRole='string',
PostAuthenticationLoginBanner='string',
PreAuthenticationLoginBanner='string',
Protocols=[
'SFTP'|'FTP'|'FTPS'|'AS2',
],
ProtocolDetails={
'PassiveIp': 'string',
'TlsSessionResumptionMode': 'DISABLED'|'ENABLED'|'ENFORCED',
'SetStatOption': 'DEFAULT'|'ENABLE_NO_OP',
'As2Transports': [
'HTTP',
]
},
SecurityPolicyName='string',
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
WorkflowDetails={
'OnUpload': [
{
'WorkflowId': 'string',
'ExecutionRole': 'string'
},
],
'OnPartialUpload': [
{
'WorkflowId': 'string',
'ExecutionRole': 'string'
},
]
},
StructuredLogDestinations=[
'string',
],
S3StorageOptions={
'DirectoryListingOptimization': 'ENABLED'|'DISABLED'
}
)
string
The Amazon Resource Name (ARN) of the Certificate Manager (ACM) certificate. Required when Protocols is set to FTPS .
To request a new public certificate, see Request a public certificate in the Certificate Manager User Guide .
To import an existing certificate into ACM, see Importing certificates into ACM in the Certificate Manager User Guide .
To request a private certificate to use FTPS through private IP addresses, see Request a private certificate in the Certificate Manager User Guide .
Certificates with the following cryptographic algorithms and key sizes are supported:
2048-bit RSA (RSA_2048)
4096-bit RSA (RSA_4096)
Elliptic Prime Curve 256 bit (EC_prime256v1)
Elliptic Prime Curve 384 bit (EC_secp384r1)
Elliptic Prime Curve 521 bit (EC_secp521r1)
Note
The certificate must be a valid SSL/TLS X.509 version 3 certificate with FQDN or IP address specified and information about the issuer.
string
The domain of the storage system that is used for file transfers. There are two domains available: Amazon Simple Storage Service (Amazon S3) and Amazon Elastic File System (Amazon EFS). The default value is S3.
Note
After the server is created, the domain cannot be changed.
dict
The virtual private cloud (VPC) endpoint settings that are configured for your server. When you host your endpoint within your VPC, you can make your endpoint accessible only to resources within your VPC, or you can attach Elastic IP addresses and make your endpoint accessible to clients over the internet. Your VPC's default security groups are automatically assigned to your endpoint.
AddressAllocationIds (list) --
A list of address allocation IDs that are required to attach an Elastic IP address to your server's endpoint.
Note
This property can only be set when EndpointType is set to VPC and it is only valid in the UpdateServer API.
(string) --
SubnetIds (list) --
A list of subnet IDs that are required to host your server endpoint in your VPC.
Note
This property can only be set when EndpointType is set to VPC .
(string) --
VpcEndpointId (string) --
The identifier of the VPC endpoint.
Note
This property can only be set when EndpointType is set to VPC_ENDPOINT .
For more information, see https://docs.aws.amazon.com/transfer/latest/userguide/create-server-in-vpc.html#deprecate-vpc-endpoint.
VpcId (string) --
The VPC identifier of the VPC in which a server's endpoint will be hosted.
Note
This property can only be set when EndpointType is set to VPC .
SecurityGroupIds (list) --
A list of security groups IDs that are available to attach to your server's endpoint.
Note
This property can only be set when EndpointType is set to VPC .
You can edit the SecurityGroupIds property in the UpdateServer API only if you are changing the EndpointType from PUBLIC or VPC_ENDPOINT to VPC . To change security groups associated with your server's VPC endpoint after creation, use the Amazon EC2 ModifyVpcEndpoint API.
(string) --
string
The type of endpoint that you want your server to use. You can choose to make your server's endpoint publicly accessible (PUBLIC) or host it inside your VPC. With an endpoint that is hosted in a VPC, you can restrict access to your server and resources only within your VPC or choose to make it internet facing by attaching Elastic IP addresses directly to it.
Note
After May 19, 2021, you won't be able to create a server using EndpointType=VPC_ENDPOINT in your Amazon Web Services account if your account hasn't already done so before May 19, 2021. If you have already created servers with EndpointType=VPC_ENDPOINT in your Amazon Web Services account on or before May 19, 2021, you will not be affected. After this date, use EndpointType =``VPC`` .
For more information, see https://docs.aws.amazon.com/transfer/latest/userguide/create-server-in-vpc.html#deprecate-vpc-endpoint.
It is recommended that you use VPC as the EndpointType . With this endpoint type, you have the option to directly associate up to three Elastic IPv4 addresses (BYO IP included) with your server's endpoint and use VPC security groups to restrict traffic by the client's public IP address. This is not possible with EndpointType set to VPC_ENDPOINT .
string
The RSA, ECDSA, or ED25519 private key to use for your SFTP-enabled server. You can add multiple host keys, in case you want to rotate keys, or have a set of active keys that use different algorithms.
Use the following command to generate an RSA 2048 bit key with no passphrase:
ssh-keygen -t rsa -b 2048 -N "" -m PEM -f my-new-server-key .
Use a minimum value of 2048 for the -b option. You can create a stronger key by using 3072 or 4096.
Use the following command to generate an ECDSA 256 bit key with no passphrase:
ssh-keygen -t ecdsa -b 256 -N "" -m PEM -f my-new-server-key .
Valid values for the -b option for ECDSA are 256, 384, and 521.
Use the following command to generate an ED25519 key with no passphrase:
ssh-keygen -t ed25519 -N "" -f my-new-server-key .
For all of these commands, you can replace my-new-server-key with a string of your choice.
Warning
If you aren't planning to migrate existing users from an existing SFTP-enabled server to a new server, don't update the host key. Accidentally changing a server's host key can be disruptive.
For more information, see Manage host keys for your SFTP-enabled server in the Transfer Family User Guide .
dict
Required when IdentityProviderType is set to AWS_DIRECTORY_SERVICE , Amazon Web Services_LAMBDA or API_GATEWAY . Accepts an array containing all of the information required to use a directory in AWS_DIRECTORY_SERVICE or invoke a customer-supplied authentication API, including the API Gateway URL. Not required when IdentityProviderType is set to SERVICE_MANAGED .
Url (string) --
Provides the location of the service endpoint used to authenticate users.
InvocationRole (string) --
This parameter is only applicable if your IdentityProviderType is API_GATEWAY . Provides the type of InvocationRole used to authenticate the user account.
DirectoryId (string) --
The identifier of the Directory Service directory that you want to stop sharing.
Function (string) --
The ARN for a Lambda function to use for the Identity provider.
SftpAuthenticationMethods (string) --
For SFTP-enabled servers, and for custom identity providers only , you can specify whether to authenticate using a password, SSH key pair, or both.
PASSWORD - users must provide their password to connect.
PUBLIC_KEY - users must provide their private key to connect.
PUBLIC_KEY_OR_PASSWORD - users can authenticate with either their password or their key. This is the default value.
PUBLIC_KEY_AND_PASSWORD - users must provide both their private key and their password to connect. The server checks the key first, and then if the key is valid, the system prompts for a password. If the private key provided does not match the public key that is stored, authentication fails.
string
The mode of authentication for a server. The default value is SERVICE_MANAGED , which allows you to store and access user credentials within the Transfer Family service.
Use AWS_DIRECTORY_SERVICE to provide access to Active Directory groups in Directory Service for Microsoft Active Directory or Microsoft Active Directory in your on-premises environment or in Amazon Web Services using AD Connector. This option also requires you to provide a Directory ID by using the IdentityProviderDetails parameter.
Use the API_GATEWAY value to integrate with an identity provider of your choosing. The API_GATEWAY setting requires you to provide an Amazon API Gateway endpoint URL to call for authentication by using the IdentityProviderDetails parameter.
Use the AWS_LAMBDA value to directly use an Lambda function as your identity provider. If you choose this value, you must specify the ARN for the Lambda function in the Function parameter for the IdentityProviderDetails data type.
string
The Amazon Resource Name (ARN) of the Identity and Access Management (IAM) role that allows a server to turn on Amazon CloudWatch logging for Amazon S3 or Amazon EFSevents. When set, you can view user activity in your CloudWatch logs.
string
Specifies a string to display when users connect to a server. This string is displayed after the user authenticates.
Note
The SFTP protocol does not support post-authentication display banners.
string
Specifies a string to display when users connect to a server. This string is displayed before the user authenticates. For example, the following banner displays details about using the system:
This system is for the use of authorized users only. Individuals using this computer system without authority, or in excess of their authority, are subject to having all of their activities on this system monitored and recorded by system personnel.
list
Specifies the file transfer protocol or protocols over which your file transfer protocol client can connect to your server's endpoint. The available protocols are:
SFTP (Secure Shell (SSH) File Transfer Protocol): File transfer over SSH
FTPS (File Transfer Protocol Secure): File transfer with TLS encryption
FTP (File Transfer Protocol): Unencrypted file transfer
AS2 (Applicability Statement 2): used for transporting structured business-to-business data
Note
If you select FTPS , you must choose a certificate stored in Certificate Manager (ACM) which is used to identify your server when clients connect to it over FTPS.
If Protocol includes either FTP or FTPS , then the EndpointType must be VPC and the IdentityProviderType must be either AWS_DIRECTORY_SERVICE , AWS_LAMBDA , or API_GATEWAY .
If Protocol includes FTP , then AddressAllocationIds cannot be associated.
If Protocol is set only to SFTP , the EndpointType can be set to PUBLIC and the IdentityProviderType can be set any of the supported identity types: SERVICE_MANAGED , AWS_DIRECTORY_SERVICE , AWS_LAMBDA , or API_GATEWAY .
If Protocol includes AS2 , then the EndpointType must be VPC , and domain must be Amazon S3.
(string) --
dict
The protocol settings that are configured for your server.
To indicate passive mode (for FTP and FTPS protocols), use the PassiveIp parameter. Enter a single dotted-quad IPv4 address, such as the external IP address of a firewall, router, or load balancer.
To ignore the error that is generated when the client attempts to use the SETSTAT command on a file that you are uploading to an Amazon S3 bucket, use the SetStatOption parameter. To have the Transfer Family server ignore the SETSTAT command and upload files without needing to make any changes to your SFTP client, set the value to ENABLE_NO_OP . If you set the SetStatOption parameter to ENABLE_NO_OP , Transfer Family generates a log entry to Amazon CloudWatch Logs, so that you can determine when the client is making a SETSTAT call.
To determine whether your Transfer Family server resumes recent, negotiated sessions through a unique session ID, use the TlsSessionResumptionMode parameter.
As2Transports indicates the transport method for the AS2 messages. Currently, only HTTP is supported.
PassiveIp (string) --
Indicates passive mode, for FTP and FTPS protocols. Enter a single IPv4 address, such as the public IP address of a firewall, router, or load balancer. For example:
aws transfer update-server --protocol-details PassiveIp=0.0.0.0
Replace 0.0.0.0 in the example above with the actual IP address you want to use.
Note
If you change the PassiveIp value, you must stop and then restart your Transfer Family server for the change to take effect. For details on using passive mode (PASV) in a NAT environment, see Configuring your FTPS server behind a firewall or NAT with Transfer Family .
Special values
The AUTO and 0.0.0.0 are special values for the PassiveIp parameter. The value PassiveIp=AUTO is assigned by default to FTP and FTPS type servers. In this case, the server automatically responds with one of the endpoint IPs within the PASV response. PassiveIp=0.0.0.0 has a more unique application for its usage. For example, if you have a High Availability (HA) Network Load Balancer (NLB) environment, where you have 3 subnets, you can only specify a single IP address using the PassiveIp parameter. This reduces the effectiveness of having High Availability. In this case, you can specify PassiveIp=0.0.0.0 . This tells the client to use the same IP address as the Control connection and utilize all AZs for their connections. Note, however, that not all FTP clients support the PassiveIp=0.0.0.0 response. FileZilla and WinSCP do support it. If you are using other clients, check to see if your client supports the PassiveIp=0.0.0.0 response.
TlsSessionResumptionMode (string) --
A property used with Transfer Family servers that use the FTPS protocol. TLS Session Resumption provides a mechanism to resume or share a negotiated secret key between the control and data connection for an FTPS session. TlsSessionResumptionMode determines whether or not the server resumes recent, negotiated sessions through a unique session ID. This property is available during CreateServer and UpdateServer calls. If a TlsSessionResumptionMode value is not specified during CreateServer , it is set to ENFORCED by default.
DISABLED : the server does not process TLS session resumption client requests and creates a new TLS session for each request.
ENABLED : the server processes and accepts clients that are performing TLS session resumption. The server doesn't reject client data connections that do not perform the TLS session resumption client processing.
ENFORCED : the server processes and accepts clients that are performing TLS session resumption. The server rejects client data connections that do not perform the TLS session resumption client processing. Before you set the value to ENFORCED , test your clients.
Note
Not all FTPS clients perform TLS session resumption. So, if you choose to enforce TLS session resumption, you prevent any connections from FTPS clients that don't perform the protocol negotiation. To determine whether or not you can use the ENFORCED value, you need to test your clients.
SetStatOption (string) --
Use the SetStatOption to ignore the error that is generated when the client attempts to use SETSTAT on a file you are uploading to an S3 bucket.
Some SFTP file transfer clients can attempt to change the attributes of remote files, including timestamp and permissions, using commands, such as SETSTAT when uploading the file. However, these commands are not compatible with object storage systems, such as Amazon S3. Due to this incompatibility, file uploads from these clients can result in errors even when the file is otherwise successfully uploaded.
Set the value to ENABLE_NO_OP to have the Transfer Family server ignore the SETSTAT command, and upload files without needing to make any changes to your SFTP client. While the SetStatOption ENABLE_NO_OP setting ignores the error, it does generate a log entry in Amazon CloudWatch Logs, so you can determine when the client is making a SETSTAT call.
Note
If you want to preserve the original timestamp for your file, and modify other file attributes using SETSTAT , you can use Amazon EFS as backend storage with Transfer Family.
As2Transports (list) --
Indicates the transport method for the AS2 messages. Currently, only HTTP is supported.
(string) --
string
Specifies the name of the security policy that is attached to the server.
list
Key-value pairs that can be used to group and search for servers.
(dict) --
Creates a key-value pair for a specific resource. Tags are metadata that you can use to search for and group a resource for various purposes. You can apply tags to servers, users, and roles. A tag key can take more than one value. For example, to group servers for accounting purposes, you might create a tag called Group and assign the values Research and Accounting to that group.
Key (string) -- [REQUIRED]
The name assigned to the tag that you create.
Value (string) -- [REQUIRED]
Contains one or more values that you assigned to the key name you create.
dict
Specifies the workflow ID for the workflow to assign and the execution role that's used for executing the workflow.
In addition to a workflow to execute when a file is uploaded completely, WorkflowDetails can also contain a workflow ID (and execution role) for a workflow to execute on partial upload. A partial upload occurs when the server session disconnects while the file is still being uploaded.
OnUpload (list) --
A trigger that starts a workflow: the workflow begins to execute after a file is uploaded.
To remove an associated workflow from a server, you can provide an empty OnUpload object, as in the following example.
aws transfer update-server --server-id s-01234567890abcdef --workflow-details '{"OnUpload":[]}'
(dict) --
Specifies the workflow ID for the workflow to assign and the execution role that's used for executing the workflow.
In addition to a workflow to execute when a file is uploaded completely, WorkflowDetails can also contain a workflow ID (and execution role) for a workflow to execute on partial upload. A partial upload occurs when the server session disconnects while the file is still being uploaded.
WorkflowId (string) -- [REQUIRED]
A unique identifier for the workflow.
ExecutionRole (string) -- [REQUIRED]
Includes the necessary permissions for S3, EFS, and Lambda operations that Transfer can assume, so that all workflow steps can operate on the required resources
OnPartialUpload (list) --
A trigger that starts a workflow if a file is only partially uploaded. You can attach a workflow to a server that executes whenever there is a partial upload.
A partial upload occurs when a file is open when the session disconnects.
(dict) --
Specifies the workflow ID for the workflow to assign and the execution role that's used for executing the workflow.
In addition to a workflow to execute when a file is uploaded completely, WorkflowDetails can also contain a workflow ID (and execution role) for a workflow to execute on partial upload. A partial upload occurs when the server session disconnects while the file is still being uploaded.
WorkflowId (string) -- [REQUIRED]
A unique identifier for the workflow.
ExecutionRole (string) -- [REQUIRED]
Includes the necessary permissions for S3, EFS, and Lambda operations that Transfer can assume, so that all workflow steps can operate on the required resources
list
Specifies the log groups to which your server logs are sent.
To specify a log group, you must provide the ARN for an existing log group. In this case, the format of the log group is as follows:
arn:aws:logs:region-name:amazon-account-id:log-group:log-group-name:*
For example, arn:aws:logs:us-east-1:111122223333:log-group:mytestgroup:*
If you have previously specified a log group for a server, you can clear it, and in effect turn off structured logging, by providing an empty value for this parameter in an update-server call. For example:
update-server --server-id s-1234567890abcdef0 --structured-log-destinations
(string) --
dict
Specifies whether or not performance for your Amazon S3 directories is optimized. This is disabled by default.
By default, home directory mappings have a TYPE of DIRECTORY . If you enable this option, you would then need to explicitly set the HomeDirectoryMapEntry Type to FILE if you want a mapping to have a file target.
DirectoryListingOptimization (string) --
Specifies whether or not performance for your Amazon S3 directories is optimized. This is disabled by default.
By default, home directory mappings have a TYPE of DIRECTORY . If you enable this option, you would then need to explicitly set the HomeDirectoryMapEntry Type to FILE if you want a mapping to have a file target.
dict
Response Syntax
{
'ServerId': 'string'
}
Response Structure
(dict) --
ServerId (string) --
The service-assigned identifier of the server that is created.
{'HomeDirectoryMappings': {'Type': 'FILE | DIRECTORY'}}
Creates a user and associates them with an existing file transfer protocol-enabled server. You can only create and associate users with servers that have the IdentityProviderType set to SERVICE_MANAGED . Using parameters for CreateUser , you can specify the user name, set the home directory, store the user's public key, and assign the user's Identity and Access Management (IAM) role. You can also optionally add a session policy, and assign metadata with tags that can be used to group and search for users.
See also: AWS API Documentation
Request Syntax
client.create_user(
HomeDirectory='string',
HomeDirectoryType='PATH'|'LOGICAL',
HomeDirectoryMappings=[
{
'Entry': 'string',
'Target': 'string',
'Type': 'FILE'|'DIRECTORY'
},
],
Policy='string',
PosixProfile={
'Uid': 123,
'Gid': 123,
'SecondaryGids': [
123,
]
},
Role='string',
ServerId='string',
SshPublicKeyBody='string',
Tags=[
{
'Key': 'string',
'Value': 'string'
},
],
UserName='string'
)
string
The landing directory (folder) for a user when they log in to the server using the client.
A HomeDirectory example is /bucket_name/home/mydirectory .
Note
The HomeDirectory parameter is only used if HomeDirectoryType is set to PATH .
string
The type of landing directory (folder) that you want your users' home directory to be when they log in to the server. If you set it to PATH , the user will see the absolute Amazon S3 bucket or Amazon EFS path as is in their file transfer protocol clients. If you set it to LOGICAL , you need to provide mappings in the HomeDirectoryMappings for how you want to make Amazon S3 or Amazon EFS paths visible to your users.
Note
If HomeDirectoryType is LOGICAL , you must provide mappings, using the HomeDirectoryMappings parameter. If, on the other hand, HomeDirectoryType is PATH , you provide an absolute path using the HomeDirectory parameter. You cannot have both HomeDirectory and HomeDirectoryMappings in your template.
list
Logical directory mappings that specify what Amazon S3 or Amazon EFS paths and keys should be visible to your user and how you want to make them visible. You must specify the Entry and Target pair, where Entry shows how the path is made visible and Target is the actual Amazon S3 or Amazon EFS path. If you only specify a target, it is displayed as is. You also must ensure that your Identity and Access Management (IAM) role provides access to paths in Target . This value can be set only when HomeDirectoryType is set to LOGICAL .
The following is an Entry and Target pair example.
[ { "Entry": "/directory1", "Target": "/bucket_name/home/mydirectory" } ]
In most cases, you can use this value instead of the session policy to lock your user down to the designated home directory ("chroot "). To do this, you can set Entry to / and set Target to the value the user should see for their home directory when they log in.
The following is an Entry and Target pair example for chroot .
[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]
(dict) --
Represents an object that contains entries and targets for HomeDirectoryMappings .
The following is an Entry and Target pair example for chroot .
[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]
Entry (string) -- [REQUIRED]
Represents an entry for HomeDirectoryMappings .
Target (string) -- [REQUIRED]
Represents the map target that is used in a HomeDirectoryMapEntry .
Type (string) --
Specifies the type of mapping. Set the type to FILE if you want the mapping to point to a file, or DIRECTORY for the directory to point to a directory.
Note
By default, home directory mappings have a Type of DIRECTORY when you create a Transfer Family server. You would need to explicitly set Type to FILE if you want a mapping to have a file target.
string
A session policy for your user so that you can use the same Identity and Access Management (IAM) role across multiple users. This policy scopes down a user's access to portions of their Amazon S3 bucket. Variables that you can use inside this policy include ${Transfer:UserName} , ${Transfer:HomeDirectory} , and ${Transfer:HomeBucket} .
Note
This policy applies only when the domain of ServerId is Amazon S3. Amazon EFS does not use session policies.
For session policies, Transfer Family stores the policy as a JSON blob, instead of the Amazon Resource Name (ARN) of the policy. You save the policy as a JSON blob and pass it in the Policy argument.
For an example of a session policy, see Example session policy .
For more information, see AssumeRole in the Amazon Web Services Security Token Service API Reference .
dict
Specifies the full POSIX identity, including user ID (Uid ), group ID (Gid ), and any secondary groups IDs (SecondaryGids ), that controls your users' access to your Amazon EFS file systems. The POSIX permissions that are set on files and directories in Amazon EFS determine the level of access your users get when transferring files into and out of your Amazon EFS file systems.
Uid (integer) -- [REQUIRED]
The POSIX user ID used for all EFS operations by this user.
Gid (integer) -- [REQUIRED]
The POSIX group ID used for all EFS operations by this user.
SecondaryGids (list) --
The secondary POSIX group IDs used for all EFS operations by this user.
(integer) --
string
[REQUIRED]
The Amazon Resource Name (ARN) of the Identity and Access Management (IAM) role that controls your users' access to your Amazon S3 bucket or Amazon EFS file system. The policies attached to this role determine the level of access that you want to provide your users when transferring files into and out of your Amazon S3 bucket or Amazon EFS file system. The IAM role should also contain a trust relationship that allows the server to access your resources when servicing your users' transfer requests.
string
[REQUIRED]
A system-assigned unique identifier for a server instance. This is the specific server that you added your user to.
string
The public portion of the Secure Shell (SSH) key used to authenticate the user to the server.
The three standard SSH public key format elements are <key type> , <body base64> , and an optional <comment> , with spaces between each element.
Transfer Family accepts RSA, ECDSA, and ED25519 keys.
For RSA keys, the key type is ssh-rsa .
For ED25519 keys, the key type is ssh-ed25519 .
For ECDSA keys, the key type is either ecdsa-sha2-nistp256 , ecdsa-sha2-nistp384 , or ecdsa-sha2-nistp521 , depending on the size of the key you generated.
list
Key-value pairs that can be used to group and search for users. Tags are metadata attached to users for any purpose.
(dict) --
Creates a key-value pair for a specific resource. Tags are metadata that you can use to search for and group a resource for various purposes. You can apply tags to servers, users, and roles. A tag key can take more than one value. For example, to group servers for accounting purposes, you might create a tag called Group and assign the values Research and Accounting to that group.
Key (string) -- [REQUIRED]
The name assigned to the tag that you create.
Value (string) -- [REQUIRED]
Contains one or more values that you assigned to the key name you create.
string
[REQUIRED]
A unique string that identifies a user and is associated with a ServerId . This user name must be a minimum of 3 and a maximum of 100 characters long. The following are valid characters: a-z, A-Z, 0-9, underscore '_', hyphen '-', period '.', and at sign '@'. The user name can't start with a hyphen, period, or at sign.
dict
Response Syntax
{
'ServerId': 'string',
'UserName': 'string'
}
Response Structure
(dict) --
ServerId (string) --
The identifier of the server that the user is attached to.
UserName (string) --
A unique string that identifies a Transfer Family user.
{'Access': {'HomeDirectoryMappings': {'Type': 'FILE | DIRECTORY'}}}
Describes the access that is assigned to the specific file transfer protocol-enabled server, as identified by its ServerId property and its ExternalId .
The response from this call returns the properties of the access that is associated with the ServerId value that was specified.
See also: AWS API Documentation
Request Syntax
client.describe_access(
ServerId='string',
ExternalId='string'
)
string
[REQUIRED]
A system-assigned unique identifier for a server that has this access assigned.
string
[REQUIRED]
A unique identifier that is required to identify specific groups within your directory. The users of the group that you associate have access to your Amazon S3 or Amazon EFS resources over the enabled protocols using Transfer Family. If you know the group name, you can view the SID values by running the following command using Windows PowerShell.
Get-ADGroup -Filter {samAccountName -like "*YourGroupName* *"} -Properties * | Select SamAccountName,ObjectSid
In that command, replace YourGroupName with the name of your Active Directory group.
The regular expression used to validate this parameter is a string of characters consisting of uppercase and lowercase alphanumeric characters with no spaces. You can also include underscores or any of the following characters: =,.@:/-
dict
Response Syntax
{
'ServerId': 'string',
'Access': {
'HomeDirectory': 'string',
'HomeDirectoryMappings': [
{
'Entry': 'string',
'Target': 'string',
'Type': 'FILE'|'DIRECTORY'
},
],
'HomeDirectoryType': 'PATH'|'LOGICAL',
'Policy': 'string',
'PosixProfile': {
'Uid': 123,
'Gid': 123,
'SecondaryGids': [
123,
]
},
'Role': 'string',
'ExternalId': 'string'
}
}
Response Structure
(dict) --
ServerId (string) --
A system-assigned unique identifier for a server that has this access assigned.
Access (dict) --
The external identifier of the server that the access is attached to.
HomeDirectory (string) --
The landing directory (folder) for a user when they log in to the server using the client.
A HomeDirectory example is /bucket_name/home/mydirectory .
Note
The HomeDirectory parameter is only used if HomeDirectoryType is set to PATH .
HomeDirectoryMappings (list) --
Logical directory mappings that specify what Amazon S3 or Amazon EFS paths and keys should be visible to your user and how you want to make them visible. You must specify the Entry and Target pair, where Entry shows how the path is made visible and Target is the actual Amazon S3 or Amazon EFS path. If you only specify a target, it is displayed as is. You also must ensure that your Identity and Access Management (IAM) role provides access to paths in Target . This value can be set only when HomeDirectoryType is set to LOGICAL .
In most cases, you can use this value instead of the session policy to lock down the associated access to the designated home directory ("chroot "). To do this, you can set Entry to '/' and set Target to the HomeDirectory parameter value.
(dict) --
Represents an object that contains entries and targets for HomeDirectoryMappings .
The following is an Entry and Target pair example for chroot .
[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]
Entry (string) --
Represents an entry for HomeDirectoryMappings .
Target (string) --
Represents the map target that is used in a HomeDirectoryMapEntry .
Type (string) --
Specifies the type of mapping. Set the type to FILE if you want the mapping to point to a file, or DIRECTORY for the directory to point to a directory.
Note
By default, home directory mappings have a Type of DIRECTORY when you create a Transfer Family server. You would need to explicitly set Type to FILE if you want a mapping to have a file target.
HomeDirectoryType (string) --
The type of landing directory (folder) that you want your users' home directory to be when they log in to the server. If you set it to PATH , the user will see the absolute Amazon S3 bucket or Amazon EFS path as is in their file transfer protocol clients. If you set it to LOGICAL , you need to provide mappings in the HomeDirectoryMappings for how you want to make Amazon S3 or Amazon EFS paths visible to your users.
Note
If HomeDirectoryType is LOGICAL , you must provide mappings, using the HomeDirectoryMappings parameter. If, on the other hand, HomeDirectoryType is PATH , you provide an absolute path using the HomeDirectory parameter. You cannot have both HomeDirectory and HomeDirectoryMappings in your template.
Policy (string) --
A session policy for your user so that you can use the same Identity and Access Management (IAM) role across multiple users. This policy scopes down a user's access to portions of their Amazon S3 bucket. Variables that you can use inside this policy include ${Transfer:UserName} , ${Transfer:HomeDirectory} , and ${Transfer:HomeBucket} .
PosixProfile (dict) --
The full POSIX identity, including user ID (Uid ), group ID (Gid ), and any secondary groups IDs (SecondaryGids ), that controls your users' access to your Amazon EFS file systems. The POSIX permissions that are set on files and directories in your file system determine the level of access your users get when transferring files into and out of your Amazon EFS file systems.
Uid (integer) --
The POSIX user ID used for all EFS operations by this user.
Gid (integer) --
The POSIX group ID used for all EFS operations by this user.
SecondaryGids (list) --
The secondary POSIX group IDs used for all EFS operations by this user.
(integer) --
Role (string) --
The Amazon Resource Name (ARN) of the Identity and Access Management (IAM) role that controls your users' access to your Amazon S3 bucket or Amazon EFS file system. The policies attached to this role determine the level of access that you want to provide your users when transferring files into and out of your Amazon S3 bucket or Amazon EFS file system. The IAM role should also contain a trust relationship that allows the server to access your resources when servicing your users' transfer requests.
ExternalId (string) --
A unique identifier that is required to identify specific groups within your directory. The users of the group that you associate have access to your Amazon S3 or Amazon EFS resources over the enabled protocols using Transfer Family. If you know the group name, you can view the SID values by running the following command using Windows PowerShell.
Get-ADGroup -Filter {samAccountName -like "*YourGroupName* *"} -Properties * | Select SamAccountName,ObjectSid
In that command, replace YourGroupName with the name of your Active Directory group.
The regular expression used to validate this parameter is a string of characters consisting of uppercase and lowercase alphanumeric characters with no spaces. You can also include underscores or any of the following characters: =,.@:/-
{'Server': {'S3StorageOptions': {'DirectoryListingOptimization': 'ENABLED | '
'DISABLED'}}}
Describes a file transfer protocol-enabled server that you specify by passing the ServerId parameter.
The response contains a description of a server's properties. When you set EndpointType to VPC, the response will contain the EndpointDetails .
See also: AWS API Documentation
Request Syntax
client.describe_server(
ServerId='string'
)
string
[REQUIRED]
A system-assigned unique identifier for a server.
dict
Response Syntax
{
'Server': {
'Arn': 'string',
'Certificate': 'string',
'ProtocolDetails': {
'PassiveIp': 'string',
'TlsSessionResumptionMode': 'DISABLED'|'ENABLED'|'ENFORCED',
'SetStatOption': 'DEFAULT'|'ENABLE_NO_OP',
'As2Transports': [
'HTTP',
]
},
'Domain': 'S3'|'EFS',
'EndpointDetails': {
'AddressAllocationIds': [
'string',
],
'SubnetIds': [
'string',
],
'VpcEndpointId': 'string',
'VpcId': 'string',
'SecurityGroupIds': [
'string',
]
},
'EndpointType': 'PUBLIC'|'VPC'|'VPC_ENDPOINT',
'HostKeyFingerprint': 'string',
'IdentityProviderDetails': {
'Url': 'string',
'InvocationRole': 'string',
'DirectoryId': 'string',
'Function': 'string',
'SftpAuthenticationMethods': 'PASSWORD'|'PUBLIC_KEY'|'PUBLIC_KEY_OR_PASSWORD'|'PUBLIC_KEY_AND_PASSWORD'
},
'IdentityProviderType': 'SERVICE_MANAGED'|'API_GATEWAY'|'AWS_DIRECTORY_SERVICE'|'AWS_LAMBDA',
'LoggingRole': 'string',
'PostAuthenticationLoginBanner': 'string',
'PreAuthenticationLoginBanner': 'string',
'Protocols': [
'SFTP'|'FTP'|'FTPS'|'AS2',
],
'SecurityPolicyName': 'string',
'ServerId': 'string',
'State': 'OFFLINE'|'ONLINE'|'STARTING'|'STOPPING'|'START_FAILED'|'STOP_FAILED',
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'UserCount': 123,
'WorkflowDetails': {
'OnUpload': [
{
'WorkflowId': 'string',
'ExecutionRole': 'string'
},
],
'OnPartialUpload': [
{
'WorkflowId': 'string',
'ExecutionRole': 'string'
},
]
},
'StructuredLogDestinations': [
'string',
],
'S3StorageOptions': {
'DirectoryListingOptimization': 'ENABLED'|'DISABLED'
}
}
}
Response Structure
(dict) --
Server (dict) --
An array containing the properties of a server with the ServerID you specified.
Arn (string) --
Specifies the unique Amazon Resource Name (ARN) of the server.
Certificate (string) --
Specifies the ARN of the Amazon Web ServicesCertificate Manager (ACM) certificate. Required when Protocols is set to FTPS .
ProtocolDetails (dict) --
The protocol settings that are configured for your server.
To indicate passive mode (for FTP and FTPS protocols), use the PassiveIp parameter. Enter a single dotted-quad IPv4 address, such as the external IP address of a firewall, router, or load balancer.
To ignore the error that is generated when the client attempts to use the SETSTAT command on a file that you are uploading to an Amazon S3 bucket, use the SetStatOption parameter. To have the Transfer Family server ignore the SETSTAT command and upload files without needing to make any changes to your SFTP client, set the value to ENABLE_NO_OP . If you set the SetStatOption parameter to ENABLE_NO_OP , Transfer Family generates a log entry to Amazon CloudWatch Logs, so that you can determine when the client is making a SETSTAT call.
To determine whether your Transfer Family server resumes recent, negotiated sessions through a unique session ID, use the TlsSessionResumptionMode parameter.
As2Transports indicates the transport method for the AS2 messages. Currently, only HTTP is supported.
PassiveIp (string) --
Indicates passive mode, for FTP and FTPS protocols. Enter a single IPv4 address, such as the public IP address of a firewall, router, or load balancer. For example:
aws transfer update-server --protocol-details PassiveIp=0.0.0.0
Replace 0.0.0.0 in the example above with the actual IP address you want to use.
Note
If you change the PassiveIp value, you must stop and then restart your Transfer Family server for the change to take effect. For details on using passive mode (PASV) in a NAT environment, see Configuring your FTPS server behind a firewall or NAT with Transfer Family .
Special values
The AUTO and 0.0.0.0 are special values for the PassiveIp parameter. The value PassiveIp=AUTO is assigned by default to FTP and FTPS type servers. In this case, the server automatically responds with one of the endpoint IPs within the PASV response. PassiveIp=0.0.0.0 has a more unique application for its usage. For example, if you have a High Availability (HA) Network Load Balancer (NLB) environment, where you have 3 subnets, you can only specify a single IP address using the PassiveIp parameter. This reduces the effectiveness of having High Availability. In this case, you can specify PassiveIp=0.0.0.0 . This tells the client to use the same IP address as the Control connection and utilize all AZs for their connections. Note, however, that not all FTP clients support the PassiveIp=0.0.0.0 response. FileZilla and WinSCP do support it. If you are using other clients, check to see if your client supports the PassiveIp=0.0.0.0 response.
TlsSessionResumptionMode (string) --
A property used with Transfer Family servers that use the FTPS protocol. TLS Session Resumption provides a mechanism to resume or share a negotiated secret key between the control and data connection for an FTPS session. TlsSessionResumptionMode determines whether or not the server resumes recent, negotiated sessions through a unique session ID. This property is available during CreateServer and UpdateServer calls. If a TlsSessionResumptionMode value is not specified during CreateServer , it is set to ENFORCED by default.
DISABLED : the server does not process TLS session resumption client requests and creates a new TLS session for each request.
ENABLED : the server processes and accepts clients that are performing TLS session resumption. The server doesn't reject client data connections that do not perform the TLS session resumption client processing.
ENFORCED : the server processes and accepts clients that are performing TLS session resumption. The server rejects client data connections that do not perform the TLS session resumption client processing. Before you set the value to ENFORCED , test your clients.
Note
Not all FTPS clients perform TLS session resumption. So, if you choose to enforce TLS session resumption, you prevent any connections from FTPS clients that don't perform the protocol negotiation. To determine whether or not you can use the ENFORCED value, you need to test your clients.
SetStatOption (string) --
Use the SetStatOption to ignore the error that is generated when the client attempts to use SETSTAT on a file you are uploading to an S3 bucket.
Some SFTP file transfer clients can attempt to change the attributes of remote files, including timestamp and permissions, using commands, such as SETSTAT when uploading the file. However, these commands are not compatible with object storage systems, such as Amazon S3. Due to this incompatibility, file uploads from these clients can result in errors even when the file is otherwise successfully uploaded.
Set the value to ENABLE_NO_OP to have the Transfer Family server ignore the SETSTAT command, and upload files without needing to make any changes to your SFTP client. While the SetStatOption ENABLE_NO_OP setting ignores the error, it does generate a log entry in Amazon CloudWatch Logs, so you can determine when the client is making a SETSTAT call.
Note
If you want to preserve the original timestamp for your file, and modify other file attributes using SETSTAT , you can use Amazon EFS as backend storage with Transfer Family.
As2Transports (list) --
Indicates the transport method for the AS2 messages. Currently, only HTTP is supported.
(string) --
Domain (string) --
Specifies the domain of the storage system that is used for file transfers.
EndpointDetails (dict) --
The virtual private cloud (VPC) endpoint settings that are configured for your server. When you host your endpoint within your VPC, you can make your endpoint accessible only to resources within your VPC, or you can attach Elastic IP addresses and make your endpoint accessible to clients over the internet. Your VPC's default security groups are automatically assigned to your endpoint.
AddressAllocationIds (list) --
A list of address allocation IDs that are required to attach an Elastic IP address to your server's endpoint.
Note
This property can only be set when EndpointType is set to VPC and it is only valid in the UpdateServer API.
(string) --
SubnetIds (list) --
A list of subnet IDs that are required to host your server endpoint in your VPC.
Note
This property can only be set when EndpointType is set to VPC .
(string) --
VpcEndpointId (string) --
The identifier of the VPC endpoint.
Note
This property can only be set when EndpointType is set to VPC_ENDPOINT .
For more information, see https://docs.aws.amazon.com/transfer/latest/userguide/create-server-in-vpc.html#deprecate-vpc-endpoint.
VpcId (string) --
The VPC identifier of the VPC in which a server's endpoint will be hosted.
Note
This property can only be set when EndpointType is set to VPC .
SecurityGroupIds (list) --
A list of security groups IDs that are available to attach to your server's endpoint.
Note
This property can only be set when EndpointType is set to VPC .
You can edit the SecurityGroupIds property in the UpdateServer API only if you are changing the EndpointType from PUBLIC or VPC_ENDPOINT to VPC . To change security groups associated with your server's VPC endpoint after creation, use the Amazon EC2 ModifyVpcEndpoint API.
(string) --
EndpointType (string) --
Defines the type of endpoint that your server is connected to. If your server is connected to a VPC endpoint, your server isn't accessible over the public internet.
HostKeyFingerprint (string) --
Specifies the Base64-encoded SHA256 fingerprint of the server's host key. This value is equivalent to the output of the ssh-keygen -l -f my-new-server-key command.
IdentityProviderDetails (dict) --
Specifies information to call a customer-supplied authentication API. This field is not populated when the IdentityProviderType of a server is AWS_DIRECTORY_SERVICE or SERVICE_MANAGED .
Url (string) --
Provides the location of the service endpoint used to authenticate users.
InvocationRole (string) --
This parameter is only applicable if your IdentityProviderType is API_GATEWAY . Provides the type of InvocationRole used to authenticate the user account.
DirectoryId (string) --
The identifier of the Directory Service directory that you want to stop sharing.
Function (string) --
The ARN for a Lambda function to use for the Identity provider.
SftpAuthenticationMethods (string) --
For SFTP-enabled servers, and for custom identity providers only , you can specify whether to authenticate using a password, SSH key pair, or both.
PASSWORD - users must provide their password to connect.
PUBLIC_KEY - users must provide their private key to connect.
PUBLIC_KEY_OR_PASSWORD - users can authenticate with either their password or their key. This is the default value.
PUBLIC_KEY_AND_PASSWORD - users must provide both their private key and their password to connect. The server checks the key first, and then if the key is valid, the system prompts for a password. If the private key provided does not match the public key that is stored, authentication fails.
IdentityProviderType (string) --
The mode of authentication for a server. The default value is SERVICE_MANAGED , which allows you to store and access user credentials within the Transfer Family service.
Use AWS_DIRECTORY_SERVICE to provide access to Active Directory groups in Directory Service for Microsoft Active Directory or Microsoft Active Directory in your on-premises environment or in Amazon Web Services using AD Connector. This option also requires you to provide a Directory ID by using the IdentityProviderDetails parameter.
Use the API_GATEWAY value to integrate with an identity provider of your choosing. The API_GATEWAY setting requires you to provide an Amazon API Gateway endpoint URL to call for authentication by using the IdentityProviderDetails parameter.
Use the AWS_LAMBDA value to directly use an Lambda function as your identity provider. If you choose this value, you must specify the ARN for the Lambda function in the Function parameter for the IdentityProviderDetails data type.
LoggingRole (string) --
The Amazon Resource Name (ARN) of the Identity and Access Management (IAM) role that allows a server to turn on Amazon CloudWatch logging for Amazon S3 or Amazon EFSevents. When set, you can view user activity in your CloudWatch logs.
PostAuthenticationLoginBanner (string) --
Specifies a string to display when users connect to a server. This string is displayed after the user authenticates.
Note
The SFTP protocol does not support post-authentication display banners.
PreAuthenticationLoginBanner (string) --
Specifies a string to display when users connect to a server. This string is displayed before the user authenticates. For example, the following banner displays details about using the system:
This system is for the use of authorized users only. Individuals using this computer system without authority, or in excess of their authority, are subject to having all of their activities on this system monitored and recorded by system personnel.
Protocols (list) --
Specifies the file transfer protocol or protocols over which your file transfer protocol client can connect to your server's endpoint. The available protocols are:
SFTP (Secure Shell (SSH) File Transfer Protocol): File transfer over SSH
FTPS (File Transfer Protocol Secure): File transfer with TLS encryption
FTP (File Transfer Protocol): Unencrypted file transfer
AS2 (Applicability Statement 2): used for transporting structured business-to-business data
Note
If you select FTPS , you must choose a certificate stored in Certificate Manager (ACM) which is used to identify your server when clients connect to it over FTPS.
If Protocol includes either FTP or FTPS , then the EndpointType must be VPC and the IdentityProviderType must be either AWS_DIRECTORY_SERVICE , AWS_LAMBDA , or API_GATEWAY .
If Protocol includes FTP , then AddressAllocationIds cannot be associated.
If Protocol is set only to SFTP , the EndpointType can be set to PUBLIC and the IdentityProviderType can be set any of the supported identity types: SERVICE_MANAGED , AWS_DIRECTORY_SERVICE , AWS_LAMBDA , or API_GATEWAY .
If Protocol includes AS2 , then the EndpointType must be VPC , and domain must be Amazon S3.
(string) --
SecurityPolicyName (string) --
Specifies the name of the security policy that is attached to the server.
ServerId (string) --
Specifies the unique system-assigned identifier for a server that you instantiate.
State (string) --
The condition of the server that was described. A value of ONLINE indicates that the server can accept jobs and transfer files. A State value of OFFLINE means that the server cannot perform file transfer operations.
The states of STARTING and STOPPING indicate that the server is in an intermediate state, either not fully able to respond, or not fully offline. The values of START_FAILED or STOP_FAILED can indicate an error condition.
Tags (list) --
Specifies the key-value pairs that you can use to search for and group servers that were assigned to the server that was described.
(dict) --
Creates a key-value pair for a specific resource. Tags are metadata that you can use to search for and group a resource for various purposes. You can apply tags to servers, users, and roles. A tag key can take more than one value. For example, to group servers for accounting purposes, you might create a tag called Group and assign the values Research and Accounting to that group.
Key (string) --
The name assigned to the tag that you create.
Value (string) --
Contains one or more values that you assigned to the key name you create.
UserCount (integer) --
Specifies the number of users that are assigned to a server you specified with the ServerId .
WorkflowDetails (dict) --
Specifies the workflow ID for the workflow to assign and the execution role that's used for executing the workflow.
In addition to a workflow to execute when a file is uploaded completely, WorkflowDetails can also contain a workflow ID (and execution role) for a workflow to execute on partial upload. A partial upload occurs when the server session disconnects while the file is still being uploaded.
OnUpload (list) --
A trigger that starts a workflow: the workflow begins to execute after a file is uploaded.
To remove an associated workflow from a server, you can provide an empty OnUpload object, as in the following example.
aws transfer update-server --server-id s-01234567890abcdef --workflow-details '{"OnUpload":[]}'
(dict) --
Specifies the workflow ID for the workflow to assign and the execution role that's used for executing the workflow.
In addition to a workflow to execute when a file is uploaded completely, WorkflowDetails can also contain a workflow ID (and execution role) for a workflow to execute on partial upload. A partial upload occurs when the server session disconnects while the file is still being uploaded.
WorkflowId (string) --
A unique identifier for the workflow.
ExecutionRole (string) --
Includes the necessary permissions for S3, EFS, and Lambda operations that Transfer can assume, so that all workflow steps can operate on the required resources
OnPartialUpload (list) --
A trigger that starts a workflow if a file is only partially uploaded. You can attach a workflow to a server that executes whenever there is a partial upload.
A partial upload occurs when a file is open when the session disconnects.
(dict) --
Specifies the workflow ID for the workflow to assign and the execution role that's used for executing the workflow.
In addition to a workflow to execute when a file is uploaded completely, WorkflowDetails can also contain a workflow ID (and execution role) for a workflow to execute on partial upload. A partial upload occurs when the server session disconnects while the file is still being uploaded.
WorkflowId (string) --
A unique identifier for the workflow.
ExecutionRole (string) --
Includes the necessary permissions for S3, EFS, and Lambda operations that Transfer can assume, so that all workflow steps can operate on the required resources
StructuredLogDestinations (list) --
Specifies the log groups to which your server logs are sent.
To specify a log group, you must provide the ARN for an existing log group. In this case, the format of the log group is as follows:
arn:aws:logs:region-name:amazon-account-id:log-group:log-group-name:*
For example, arn:aws:logs:us-east-1:111122223333:log-group:mytestgroup:*
If you have previously specified a log group for a server, you can clear it, and in effect turn off structured logging, by providing an empty value for this parameter in an update-server call. For example:
update-server --server-id s-1234567890abcdef0 --structured-log-destinations
(string) --
S3StorageOptions (dict) --
Specifies whether or not performance for your Amazon S3 directories is optimized. This is disabled by default.
By default, home directory mappings have a TYPE of DIRECTORY . If you enable this option, you would then need to explicitly set the HomeDirectoryMapEntry Type to FILE if you want a mapping to have a file target.
DirectoryListingOptimization (string) --
Specifies whether or not performance for your Amazon S3 directories is optimized. This is disabled by default.
By default, home directory mappings have a TYPE of DIRECTORY . If you enable this option, you would then need to explicitly set the HomeDirectoryMapEntry Type to FILE if you want a mapping to have a file target.
{'User': {'HomeDirectoryMappings': {'Type': 'FILE | DIRECTORY'}}}
Describes the user assigned to the specific file transfer protocol-enabled server, as identified by its ServerId property.
The response from this call returns the properties of the user associated with the ServerId value that was specified.
See also: AWS API Documentation
Request Syntax
client.describe_user(
ServerId='string',
UserName='string'
)
string
[REQUIRED]
A system-assigned unique identifier for a server that has this user assigned.
string
[REQUIRED]
The name of the user assigned to one or more servers. User names are part of the sign-in credentials to use the Transfer Family service and perform file transfer tasks.
dict
Response Syntax
{
'ServerId': 'string',
'User': {
'Arn': 'string',
'HomeDirectory': 'string',
'HomeDirectoryMappings': [
{
'Entry': 'string',
'Target': 'string',
'Type': 'FILE'|'DIRECTORY'
},
],
'HomeDirectoryType': 'PATH'|'LOGICAL',
'Policy': 'string',
'PosixProfile': {
'Uid': 123,
'Gid': 123,
'SecondaryGids': [
123,
]
},
'Role': 'string',
'SshPublicKeys': [
{
'DateImported': datetime(2015, 1, 1),
'SshPublicKeyBody': 'string',
'SshPublicKeyId': 'string'
},
],
'Tags': [
{
'Key': 'string',
'Value': 'string'
},
],
'UserName': 'string'
}
}
Response Structure
(dict) --
ServerId (string) --
A system-assigned unique identifier for a server that has this user assigned.
User (dict) --
An array containing the properties of the Transfer Family user for the ServerID value that you specified.
Arn (string) --
Specifies the unique Amazon Resource Name (ARN) for the user that was requested to be described.
HomeDirectory (string) --
The landing directory (folder) for a user when they log in to the server using the client.
A HomeDirectory example is /bucket_name/home/mydirectory .
Note
The HomeDirectory parameter is only used if HomeDirectoryType is set to PATH .
HomeDirectoryMappings (list) --
Logical directory mappings that specify what Amazon S3 or Amazon EFS paths and keys should be visible to your user and how you want to make them visible. You must specify the Entry and Target pair, where Entry shows how the path is made visible and Target is the actual Amazon S3 or Amazon EFS path. If you only specify a target, it is displayed as is. You also must ensure that your Identity and Access Management (IAM) role provides access to paths in Target . This value can be set only when HomeDirectoryType is set to LOGICAL .
In most cases, you can use this value instead of the session policy to lock your user down to the designated home directory ("chroot "). To do this, you can set Entry to '/' and set Target to the HomeDirectory parameter value.
(dict) --
Represents an object that contains entries and targets for HomeDirectoryMappings .
The following is an Entry and Target pair example for chroot .
[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]
Entry (string) --
Represents an entry for HomeDirectoryMappings .
Target (string) --
Represents the map target that is used in a HomeDirectoryMapEntry .
Type (string) --
Specifies the type of mapping. Set the type to FILE if you want the mapping to point to a file, or DIRECTORY for the directory to point to a directory.
Note
By default, home directory mappings have a Type of DIRECTORY when you create a Transfer Family server. You would need to explicitly set Type to FILE if you want a mapping to have a file target.
HomeDirectoryType (string) --
The type of landing directory (folder) that you want your users' home directory to be when they log in to the server. If you set it to PATH , the user will see the absolute Amazon S3 bucket or Amazon EFS path as is in their file transfer protocol clients. If you set it to LOGICAL , you need to provide mappings in the HomeDirectoryMappings for how you want to make Amazon S3 or Amazon EFS paths visible to your users.
Note
If HomeDirectoryType is LOGICAL , you must provide mappings, using the HomeDirectoryMappings parameter. If, on the other hand, HomeDirectoryType is PATH , you provide an absolute path using the HomeDirectory parameter. You cannot have both HomeDirectory and HomeDirectoryMappings in your template.
Policy (string) --
A session policy for your user so that you can use the same Identity and Access Management (IAM) role across multiple users. This policy scopes down a user's access to portions of their Amazon S3 bucket. Variables that you can use inside this policy include ${Transfer:UserName} , ${Transfer:HomeDirectory} , and ${Transfer:HomeBucket} .
PosixProfile (dict) --
Specifies the full POSIX identity, including user ID (Uid ), group ID (Gid ), and any secondary groups IDs (SecondaryGids ), that controls your users' access to your Amazon Elastic File System (Amazon EFS) file systems. The POSIX permissions that are set on files and directories in your file system determine the level of access your users get when transferring files into and out of your Amazon EFS file systems.
Uid (integer) --
The POSIX user ID used for all EFS operations by this user.
Gid (integer) --
The POSIX group ID used for all EFS operations by this user.
SecondaryGids (list) --
The secondary POSIX group IDs used for all EFS operations by this user.
(integer) --
Role (string) --
The Amazon Resource Name (ARN) of the Identity and Access Management (IAM) role that controls your users' access to your Amazon S3 bucket or Amazon EFS file system. The policies attached to this role determine the level of access that you want to provide your users when transferring files into and out of your Amazon S3 bucket or Amazon EFS file system. The IAM role should also contain a trust relationship that allows the server to access your resources when servicing your users' transfer requests.
SshPublicKeys (list) --
Specifies the public key portion of the Secure Shell (SSH) keys stored for the described user.
(dict) --
Provides information about the public Secure Shell (SSH) key that is associated with a Transfer Family user for the specific file transfer protocol-enabled server (as identified by ServerId ). The information returned includes the date the key was imported, the public key contents, and the public key ID. A user can store more than one SSH public key associated with their user name on a specific server.
DateImported (datetime) --
Specifies the date that the public key was added to the Transfer Family user.
SshPublicKeyBody (string) --
Specifies the content of the SSH public key as specified by the PublicKeyId .
Transfer Family accepts RSA, ECDSA, and ED25519 keys.
SshPublicKeyId (string) --
Specifies the SshPublicKeyId parameter contains the identifier of the public key.
Tags (list) --
Specifies the key-value pairs for the user requested. Tag can be used to search for and group users for a variety of purposes.
(dict) --
Creates a key-value pair for a specific resource. Tags are metadata that you can use to search for and group a resource for various purposes. You can apply tags to servers, users, and roles. A tag key can take more than one value. For example, to group servers for accounting purposes, you might create a tag called Group and assign the values Research and Accounting to that group.
Key (string) --
The name assigned to the tag that you create.
Value (string) --
Contains one or more values that you assigned to the key name you create.
UserName (string) --
Specifies the name of the user that was requested to be described. User names are used for authentication purposes. This is the string that will be used by your user when they log in to your server.
{'HomeDirectoryMappings': {'Type': 'FILE | DIRECTORY'}}
Allows you to update parameters for the access specified in the ServerID and ExternalID parameters.
See also: AWS API Documentation
Request Syntax
client.update_access(
HomeDirectory='string',
HomeDirectoryType='PATH'|'LOGICAL',
HomeDirectoryMappings=[
{
'Entry': 'string',
'Target': 'string',
'Type': 'FILE'|'DIRECTORY'
},
],
Policy='string',
PosixProfile={
'Uid': 123,
'Gid': 123,
'SecondaryGids': [
123,
]
},
Role='string',
ServerId='string',
ExternalId='string'
)
string
The landing directory (folder) for a user when they log in to the server using the client.
A HomeDirectory example is /bucket_name/home/mydirectory .
Note
The HomeDirectory parameter is only used if HomeDirectoryType is set to PATH .
string
The type of landing directory (folder) that you want your users' home directory to be when they log in to the server. If you set it to PATH , the user will see the absolute Amazon S3 bucket or Amazon EFS path as is in their file transfer protocol clients. If you set it to LOGICAL , you need to provide mappings in the HomeDirectoryMappings for how you want to make Amazon S3 or Amazon EFS paths visible to your users.
Note
If HomeDirectoryType is LOGICAL , you must provide mappings, using the HomeDirectoryMappings parameter. If, on the other hand, HomeDirectoryType is PATH , you provide an absolute path using the HomeDirectory parameter. You cannot have both HomeDirectory and HomeDirectoryMappings in your template.
list
Logical directory mappings that specify what Amazon S3 or Amazon EFS paths and keys should be visible to your user and how you want to make them visible. You must specify the Entry and Target pair, where Entry shows how the path is made visible and Target is the actual Amazon S3 or Amazon EFS path. If you only specify a target, it is displayed as is. You also must ensure that your Identity and Access Management (IAM) role provides access to paths in Target . This value can be set only when HomeDirectoryType is set to LOGICAL .
The following is an Entry and Target pair example.
[ { "Entry": "/directory1", "Target": "/bucket_name/home/mydirectory" } ]
In most cases, you can use this value instead of the session policy to lock down your user to the designated home directory ("chroot "). To do this, you can set Entry to / and set Target to the HomeDirectory parameter value.
The following is an Entry and Target pair example for chroot .
[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]
(dict) --
Represents an object that contains entries and targets for HomeDirectoryMappings .
The following is an Entry and Target pair example for chroot .
[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]
Entry (string) -- [REQUIRED]
Represents an entry for HomeDirectoryMappings .
Target (string) -- [REQUIRED]
Represents the map target that is used in a HomeDirectoryMapEntry .
Type (string) --
Specifies the type of mapping. Set the type to FILE if you want the mapping to point to a file, or DIRECTORY for the directory to point to a directory.
Note
By default, home directory mappings have a Type of DIRECTORY when you create a Transfer Family server. You would need to explicitly set Type to FILE if you want a mapping to have a file target.
string
A session policy for your user so that you can use the same Identity and Access Management (IAM) role across multiple users. This policy scopes down a user's access to portions of their Amazon S3 bucket. Variables that you can use inside this policy include ${Transfer:UserName} , ${Transfer:HomeDirectory} , and ${Transfer:HomeBucket} .
Note
This policy applies only when the domain of ServerId is Amazon S3. Amazon EFS does not use session policies.
For session policies, Transfer Family stores the policy as a JSON blob, instead of the Amazon Resource Name (ARN) of the policy. You save the policy as a JSON blob and pass it in the Policy argument.
For an example of a session policy, see Example session policy .
For more information, see AssumeRole in the Amazon Web ServicesSecurity Token Service API Reference .
dict
The full POSIX identity, including user ID (Uid ), group ID (Gid ), and any secondary groups IDs (SecondaryGids ), that controls your users' access to your Amazon EFS file systems. The POSIX permissions that are set on files and directories in your file system determine the level of access your users get when transferring files into and out of your Amazon EFS file systems.
Uid (integer) -- [REQUIRED]
The POSIX user ID used for all EFS operations by this user.
Gid (integer) -- [REQUIRED]
The POSIX group ID used for all EFS operations by this user.
SecondaryGids (list) --
The secondary POSIX group IDs used for all EFS operations by this user.
(integer) --
string
The Amazon Resource Name (ARN) of the Identity and Access Management (IAM) role that controls your users' access to your Amazon S3 bucket or Amazon EFS file system. The policies attached to this role determine the level of access that you want to provide your users when transferring files into and out of your Amazon S3 bucket or Amazon EFS file system. The IAM role should also contain a trust relationship that allows the server to access your resources when servicing your users' transfer requests.
string
[REQUIRED]
A system-assigned unique identifier for a server instance. This is the specific server that you added your user to.
string
[REQUIRED]
A unique identifier that is required to identify specific groups within your directory. The users of the group that you associate have access to your Amazon S3 or Amazon EFS resources over the enabled protocols using Transfer Family. If you know the group name, you can view the SID values by running the following command using Windows PowerShell.
Get-ADGroup -Filter {samAccountName -like "*YourGroupName* *"} -Properties * | Select SamAccountName,ObjectSid
In that command, replace YourGroupName with the name of your Active Directory group.
The regular expression used to validate this parameter is a string of characters consisting of uppercase and lowercase alphanumeric characters with no spaces. You can also include underscores or any of the following characters: =,.@:/-
dict
Response Syntax
{
'ServerId': 'string',
'ExternalId': 'string'
}
Response Structure
(dict) --
ServerId (string) --
The identifier of the server that the user is attached to.
ExternalId (string) --
The external identifier of the group whose users have access to your Amazon S3 or Amazon EFS resources over the enabled protocols using Amazon Web ServicesTransfer Family.
{'S3StorageOptions': {'DirectoryListingOptimization': 'ENABLED | DISABLED'}}
Updates the file transfer protocol-enabled server's properties after that server has been created.
The UpdateServer call returns the ServerId of the server you updated.
See also: AWS API Documentation
Request Syntax
client.update_server(
Certificate='string',
ProtocolDetails={
'PassiveIp': 'string',
'TlsSessionResumptionMode': 'DISABLED'|'ENABLED'|'ENFORCED',
'SetStatOption': 'DEFAULT'|'ENABLE_NO_OP',
'As2Transports': [
'HTTP',
]
},
EndpointDetails={
'AddressAllocationIds': [
'string',
],
'SubnetIds': [
'string',
],
'VpcEndpointId': 'string',
'VpcId': 'string',
'SecurityGroupIds': [
'string',
]
},
EndpointType='PUBLIC'|'VPC'|'VPC_ENDPOINT',
HostKey='string',
IdentityProviderDetails={
'Url': 'string',
'InvocationRole': 'string',
'DirectoryId': 'string',
'Function': 'string',
'SftpAuthenticationMethods': 'PASSWORD'|'PUBLIC_KEY'|'PUBLIC_KEY_OR_PASSWORD'|'PUBLIC_KEY_AND_PASSWORD'
},
LoggingRole='string',
PostAuthenticationLoginBanner='string',
PreAuthenticationLoginBanner='string',
Protocols=[
'SFTP'|'FTP'|'FTPS'|'AS2',
],
SecurityPolicyName='string',
ServerId='string',
WorkflowDetails={
'OnUpload': [
{
'WorkflowId': 'string',
'ExecutionRole': 'string'
},
],
'OnPartialUpload': [
{
'WorkflowId': 'string',
'ExecutionRole': 'string'
},
]
},
StructuredLogDestinations=[
'string',
],
S3StorageOptions={
'DirectoryListingOptimization': 'ENABLED'|'DISABLED'
}
)
string
The Amazon Resource Name (ARN) of the Amazon Web ServicesCertificate Manager (ACM) certificate. Required when Protocols is set to FTPS .
To request a new public certificate, see Request a public certificate in the Amazon Web ServicesCertificate Manager User Guide .
To import an existing certificate into ACM, see Importing certificates into ACM in the Amazon Web ServicesCertificate Manager User Guide .
To request a private certificate to use FTPS through private IP addresses, see Request a private certificate in the Amazon Web ServicesCertificate Manager User Guide .
Certificates with the following cryptographic algorithms and key sizes are supported:
2048-bit RSA (RSA_2048)
4096-bit RSA (RSA_4096)
Elliptic Prime Curve 256 bit (EC_prime256v1)
Elliptic Prime Curve 384 bit (EC_secp384r1)
Elliptic Prime Curve 521 bit (EC_secp521r1)
Note
The certificate must be a valid SSL/TLS X.509 version 3 certificate with FQDN or IP address specified and information about the issuer.
dict
The protocol settings that are configured for your server.
To indicate passive mode (for FTP and FTPS protocols), use the PassiveIp parameter. Enter a single dotted-quad IPv4 address, such as the external IP address of a firewall, router, or load balancer.
To ignore the error that is generated when the client attempts to use the SETSTAT command on a file that you are uploading to an Amazon S3 bucket, use the SetStatOption parameter. To have the Transfer Family server ignore the SETSTAT command and upload files without needing to make any changes to your SFTP client, set the value to ENABLE_NO_OP . If you set the SetStatOption parameter to ENABLE_NO_OP , Transfer Family generates a log entry to Amazon CloudWatch Logs, so that you can determine when the client is making a SETSTAT call.
To determine whether your Transfer Family server resumes recent, negotiated sessions through a unique session ID, use the TlsSessionResumptionMode parameter.
As2Transports indicates the transport method for the AS2 messages. Currently, only HTTP is supported.
PassiveIp (string) --
Indicates passive mode, for FTP and FTPS protocols. Enter a single IPv4 address, such as the public IP address of a firewall, router, or load balancer. For example:
aws transfer update-server --protocol-details PassiveIp=0.0.0.0
Replace 0.0.0.0 in the example above with the actual IP address you want to use.
Note
If you change the PassiveIp value, you must stop and then restart your Transfer Family server for the change to take effect. For details on using passive mode (PASV) in a NAT environment, see Configuring your FTPS server behind a firewall or NAT with Transfer Family .
Special values
The AUTO and 0.0.0.0 are special values for the PassiveIp parameter. The value PassiveIp=AUTO is assigned by default to FTP and FTPS type servers. In this case, the server automatically responds with one of the endpoint IPs within the PASV response. PassiveIp=0.0.0.0 has a more unique application for its usage. For example, if you have a High Availability (HA) Network Load Balancer (NLB) environment, where you have 3 subnets, you can only specify a single IP address using the PassiveIp parameter. This reduces the effectiveness of having High Availability. In this case, you can specify PassiveIp=0.0.0.0 . This tells the client to use the same IP address as the Control connection and utilize all AZs for their connections. Note, however, that not all FTP clients support the PassiveIp=0.0.0.0 response. FileZilla and WinSCP do support it. If you are using other clients, check to see if your client supports the PassiveIp=0.0.0.0 response.
TlsSessionResumptionMode (string) --
A property used with Transfer Family servers that use the FTPS protocol. TLS Session Resumption provides a mechanism to resume or share a negotiated secret key between the control and data connection for an FTPS session. TlsSessionResumptionMode determines whether or not the server resumes recent, negotiated sessions through a unique session ID. This property is available during CreateServer and UpdateServer calls. If a TlsSessionResumptionMode value is not specified during CreateServer , it is set to ENFORCED by default.
DISABLED : the server does not process TLS session resumption client requests and creates a new TLS session for each request.
ENABLED : the server processes and accepts clients that are performing TLS session resumption. The server doesn't reject client data connections that do not perform the TLS session resumption client processing.
ENFORCED : the server processes and accepts clients that are performing TLS session resumption. The server rejects client data connections that do not perform the TLS session resumption client processing. Before you set the value to ENFORCED , test your clients.
Note
Not all FTPS clients perform TLS session resumption. So, if you choose to enforce TLS session resumption, you prevent any connections from FTPS clients that don't perform the protocol negotiation. To determine whether or not you can use the ENFORCED value, you need to test your clients.
SetStatOption (string) --
Use the SetStatOption to ignore the error that is generated when the client attempts to use SETSTAT on a file you are uploading to an S3 bucket.
Some SFTP file transfer clients can attempt to change the attributes of remote files, including timestamp and permissions, using commands, such as SETSTAT when uploading the file. However, these commands are not compatible with object storage systems, such as Amazon S3. Due to this incompatibility, file uploads from these clients can result in errors even when the file is otherwise successfully uploaded.
Set the value to ENABLE_NO_OP to have the Transfer Family server ignore the SETSTAT command, and upload files without needing to make any changes to your SFTP client. While the SetStatOption ENABLE_NO_OP setting ignores the error, it does generate a log entry in Amazon CloudWatch Logs, so you can determine when the client is making a SETSTAT call.
Note
If you want to preserve the original timestamp for your file, and modify other file attributes using SETSTAT , you can use Amazon EFS as backend storage with Transfer Family.
As2Transports (list) --
Indicates the transport method for the AS2 messages. Currently, only HTTP is supported.
(string) --
dict
The virtual private cloud (VPC) endpoint settings that are configured for your server. When you host your endpoint within your VPC, you can make your endpoint accessible only to resources within your VPC, or you can attach Elastic IP addresses and make your endpoint accessible to clients over the internet. Your VPC's default security groups are automatically assigned to your endpoint.
AddressAllocationIds (list) --
A list of address allocation IDs that are required to attach an Elastic IP address to your server's endpoint.
Note
This property can only be set when EndpointType is set to VPC and it is only valid in the UpdateServer API.
(string) --
SubnetIds (list) --
A list of subnet IDs that are required to host your server endpoint in your VPC.
Note
This property can only be set when EndpointType is set to VPC .
(string) --
VpcEndpointId (string) --
The identifier of the VPC endpoint.
Note
This property can only be set when EndpointType is set to VPC_ENDPOINT .
For more information, see https://docs.aws.amazon.com/transfer/latest/userguide/create-server-in-vpc.html#deprecate-vpc-endpoint.
VpcId (string) --
The VPC identifier of the VPC in which a server's endpoint will be hosted.
Note
This property can only be set when EndpointType is set to VPC .
SecurityGroupIds (list) --
A list of security groups IDs that are available to attach to your server's endpoint.
Note
This property can only be set when EndpointType is set to VPC .
You can edit the SecurityGroupIds property in the UpdateServer API only if you are changing the EndpointType from PUBLIC or VPC_ENDPOINT to VPC . To change security groups associated with your server's VPC endpoint after creation, use the Amazon EC2 ModifyVpcEndpoint API.
(string) --
string
The type of endpoint that you want your server to use. You can choose to make your server's endpoint publicly accessible (PUBLIC) or host it inside your VPC. With an endpoint that is hosted in a VPC, you can restrict access to your server and resources only within your VPC or choose to make it internet facing by attaching Elastic IP addresses directly to it.
Note
After May 19, 2021, you won't be able to create a server using EndpointType=VPC_ENDPOINT in your Amazon Web Servicesaccount if your account hasn't already done so before May 19, 2021. If you have already created servers with EndpointType=VPC_ENDPOINT in your Amazon Web Servicesaccount on or before May 19, 2021, you will not be affected. After this date, use EndpointType =``VPC`` .
For more information, see https://docs.aws.amazon.com/transfer/latest/userguide/create-server-in-vpc.html#deprecate-vpc-endpoint.
It is recommended that you use VPC as the EndpointType . With this endpoint type, you have the option to directly associate up to three Elastic IPv4 addresses (BYO IP included) with your server's endpoint and use VPC security groups to restrict traffic by the client's public IP address. This is not possible with EndpointType set to VPC_ENDPOINT .
string
The RSA, ECDSA, or ED25519 private key to use for your SFTP-enabled server. You can add multiple host keys, in case you want to rotate keys, or have a set of active keys that use different algorithms.
Use the following command to generate an RSA 2048 bit key with no passphrase:
ssh-keygen -t rsa -b 2048 -N "" -m PEM -f my-new-server-key .
Use a minimum value of 2048 for the -b option. You can create a stronger key by using 3072 or 4096.
Use the following command to generate an ECDSA 256 bit key with no passphrase:
ssh-keygen -t ecdsa -b 256 -N "" -m PEM -f my-new-server-key .
Valid values for the -b option for ECDSA are 256, 384, and 521.
Use the following command to generate an ED25519 key with no passphrase:
ssh-keygen -t ed25519 -N "" -f my-new-server-key .
For all of these commands, you can replace my-new-server-key with a string of your choice.
Warning
If you aren't planning to migrate existing users from an existing SFTP-enabled server to a new server, don't update the host key. Accidentally changing a server's host key can be disruptive.
For more information, see Manage host keys for your SFTP-enabled server in the Transfer Family User Guide .
dict
An array containing all of the information required to call a customer's authentication API method.
Url (string) --
Provides the location of the service endpoint used to authenticate users.
InvocationRole (string) --
This parameter is only applicable if your IdentityProviderType is API_GATEWAY . Provides the type of InvocationRole used to authenticate the user account.
DirectoryId (string) --
The identifier of the Directory Service directory that you want to stop sharing.
Function (string) --
The ARN for a Lambda function to use for the Identity provider.
SftpAuthenticationMethods (string) --
For SFTP-enabled servers, and for custom identity providers only , you can specify whether to authenticate using a password, SSH key pair, or both.
PASSWORD - users must provide their password to connect.
PUBLIC_KEY - users must provide their private key to connect.
PUBLIC_KEY_OR_PASSWORD - users can authenticate with either their password or their key. This is the default value.
PUBLIC_KEY_AND_PASSWORD - users must provide both their private key and their password to connect. The server checks the key first, and then if the key is valid, the system prompts for a password. If the private key provided does not match the public key that is stored, authentication fails.
string
The Amazon Resource Name (ARN) of the Identity and Access Management (IAM) role that allows a server to turn on Amazon CloudWatch logging for Amazon S3 or Amazon EFSevents. When set, you can view user activity in your CloudWatch logs.
string
Specifies a string to display when users connect to a server. This string is displayed after the user authenticates.
Note
The SFTP protocol does not support post-authentication display banners.
string
Specifies a string to display when users connect to a server. This string is displayed before the user authenticates. For example, the following banner displays details about using the system:
This system is for the use of authorized users only. Individuals using this computer system without authority, or in excess of their authority, are subject to having all of their activities on this system monitored and recorded by system personnel.
list
Specifies the file transfer protocol or protocols over which your file transfer protocol client can connect to your server's endpoint. The available protocols are:
SFTP (Secure Shell (SSH) File Transfer Protocol): File transfer over SSH
FTPS (File Transfer Protocol Secure): File transfer with TLS encryption
FTP (File Transfer Protocol): Unencrypted file transfer
AS2 (Applicability Statement 2): used for transporting structured business-to-business data
Note
If you select FTPS , you must choose a certificate stored in Certificate Manager (ACM) which is used to identify your server when clients connect to it over FTPS.
If Protocol includes either FTP or FTPS , then the EndpointType must be VPC and the IdentityProviderType must be either AWS_DIRECTORY_SERVICE , AWS_LAMBDA , or API_GATEWAY .
If Protocol includes FTP , then AddressAllocationIds cannot be associated.
If Protocol is set only to SFTP , the EndpointType can be set to PUBLIC and the IdentityProviderType can be set any of the supported identity types: SERVICE_MANAGED , AWS_DIRECTORY_SERVICE , AWS_LAMBDA , or API_GATEWAY .
If Protocol includes AS2 , then the EndpointType must be VPC , and domain must be Amazon S3.
(string) --
string
Specifies the name of the security policy that is attached to the server.
string
[REQUIRED]
A system-assigned unique identifier for a server instance that the Transfer Family user is assigned to.
dict
Specifies the workflow ID for the workflow to assign and the execution role that's used for executing the workflow.
In addition to a workflow to execute when a file is uploaded completely, WorkflowDetails can also contain a workflow ID (and execution role) for a workflow to execute on partial upload. A partial upload occurs when the server session disconnects while the file is still being uploaded.
To remove an associated workflow from a server, you can provide an empty OnUpload object, as in the following example.
aws transfer update-server --server-id s-01234567890abcdef --workflow-details '{"OnUpload":[]}'
OnUpload (list) --
A trigger that starts a workflow: the workflow begins to execute after a file is uploaded.
To remove an associated workflow from a server, you can provide an empty OnUpload object, as in the following example.
aws transfer update-server --server-id s-01234567890abcdef --workflow-details '{"OnUpload":[]}'
(dict) --
Specifies the workflow ID for the workflow to assign and the execution role that's used for executing the workflow.
In addition to a workflow to execute when a file is uploaded completely, WorkflowDetails can also contain a workflow ID (and execution role) for a workflow to execute on partial upload. A partial upload occurs when the server session disconnects while the file is still being uploaded.
WorkflowId (string) -- [REQUIRED]
A unique identifier for the workflow.
ExecutionRole (string) -- [REQUIRED]
Includes the necessary permissions for S3, EFS, and Lambda operations that Transfer can assume, so that all workflow steps can operate on the required resources
OnPartialUpload (list) --
A trigger that starts a workflow if a file is only partially uploaded. You can attach a workflow to a server that executes whenever there is a partial upload.
A partial upload occurs when a file is open when the session disconnects.
(dict) --
Specifies the workflow ID for the workflow to assign and the execution role that's used for executing the workflow.
In addition to a workflow to execute when a file is uploaded completely, WorkflowDetails can also contain a workflow ID (and execution role) for a workflow to execute on partial upload. A partial upload occurs when the server session disconnects while the file is still being uploaded.
WorkflowId (string) -- [REQUIRED]
A unique identifier for the workflow.
ExecutionRole (string) -- [REQUIRED]
Includes the necessary permissions for S3, EFS, and Lambda operations that Transfer can assume, so that all workflow steps can operate on the required resources
list
Specifies the log groups to which your server logs are sent.
To specify a log group, you must provide the ARN for an existing log group. In this case, the format of the log group is as follows:
arn:aws:logs:region-name:amazon-account-id:log-group:log-group-name:*
For example, arn:aws:logs:us-east-1:111122223333:log-group:mytestgroup:*
If you have previously specified a log group for a server, you can clear it, and in effect turn off structured logging, by providing an empty value for this parameter in an update-server call. For example:
update-server --server-id s-1234567890abcdef0 --structured-log-destinations
(string) --
dict
Specifies whether or not performance for your Amazon S3 directories is optimized. This is disabled by default.
By default, home directory mappings have a TYPE of DIRECTORY . If you enable this option, you would then need to explicitly set the HomeDirectoryMapEntry Type to FILE if you want a mapping to have a file target.
DirectoryListingOptimization (string) --
Specifies whether or not performance for your Amazon S3 directories is optimized. This is disabled by default.
By default, home directory mappings have a TYPE of DIRECTORY . If you enable this option, you would then need to explicitly set the HomeDirectoryMapEntry Type to FILE if you want a mapping to have a file target.
dict
Response Syntax
{
'ServerId': 'string'
}
Response Structure
(dict) --
ServerId (string) --
A system-assigned unique identifier for a server that the Transfer Family user is assigned to.
{'HomeDirectoryMappings': {'Type': 'FILE | DIRECTORY'}}
Assigns new properties to a user. Parameters you pass modify any or all of the following: the home directory, role, and policy for the UserName and ServerId you specify.
The response returns the ServerId and the UserName for the updated user.
See also: AWS API Documentation
Request Syntax
client.update_user(
HomeDirectory='string',
HomeDirectoryType='PATH'|'LOGICAL',
HomeDirectoryMappings=[
{
'Entry': 'string',
'Target': 'string',
'Type': 'FILE'|'DIRECTORY'
},
],
Policy='string',
PosixProfile={
'Uid': 123,
'Gid': 123,
'SecondaryGids': [
123,
]
},
Role='string',
ServerId='string',
UserName='string'
)
string
The landing directory (folder) for a user when they log in to the server using the client.
A HomeDirectory example is /bucket_name/home/mydirectory .
Note
The HomeDirectory parameter is only used if HomeDirectoryType is set to PATH .
string
The type of landing directory (folder) that you want your users' home directory to be when they log in to the server. If you set it to PATH , the user will see the absolute Amazon S3 bucket or Amazon EFS path as is in their file transfer protocol clients. If you set it to LOGICAL , you need to provide mappings in the HomeDirectoryMappings for how you want to make Amazon S3 or Amazon EFS paths visible to your users.
Note
If HomeDirectoryType is LOGICAL , you must provide mappings, using the HomeDirectoryMappings parameter. If, on the other hand, HomeDirectoryType is PATH , you provide an absolute path using the HomeDirectory parameter. You cannot have both HomeDirectory and HomeDirectoryMappings in your template.
list
Logical directory mappings that specify what Amazon S3 or Amazon EFS paths and keys should be visible to your user and how you want to make them visible. You must specify the Entry and Target pair, where Entry shows how the path is made visible and Target is the actual Amazon S3 or Amazon EFS path. If you only specify a target, it is displayed as is. You also must ensure that your Identity and Access Management (IAM) role provides access to paths in Target . This value can be set only when HomeDirectoryType is set to LOGICAL .
The following is an Entry and Target pair example.
[ { "Entry": "/directory1", "Target": "/bucket_name/home/mydirectory" } ]
In most cases, you can use this value instead of the session policy to lock down your user to the designated home directory ("chroot "). To do this, you can set Entry to '/' and set Target to the HomeDirectory parameter value.
The following is an Entry and Target pair example for chroot .
[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]
(dict) --
Represents an object that contains entries and targets for HomeDirectoryMappings .
The following is an Entry and Target pair example for chroot .
[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]
Entry (string) -- [REQUIRED]
Represents an entry for HomeDirectoryMappings .
Target (string) -- [REQUIRED]
Represents the map target that is used in a HomeDirectoryMapEntry .
Type (string) --
Specifies the type of mapping. Set the type to FILE if you want the mapping to point to a file, or DIRECTORY for the directory to point to a directory.
Note
By default, home directory mappings have a Type of DIRECTORY when you create a Transfer Family server. You would need to explicitly set Type to FILE if you want a mapping to have a file target.
string
A session policy for your user so that you can use the same Identity and Access Management (IAM) role across multiple users. This policy scopes down a user's access to portions of their Amazon S3 bucket. Variables that you can use inside this policy include ${Transfer:UserName} , ${Transfer:HomeDirectory} , and ${Transfer:HomeBucket} .
Note
This policy applies only when the domain of ServerId is Amazon S3. Amazon EFS does not use session policies.
For session policies, Transfer Family stores the policy as a JSON blob, instead of the Amazon Resource Name (ARN) of the policy. You save the policy as a JSON blob and pass it in the Policy argument.
For an example of a session policy, see Creating a session policy .
For more information, see AssumeRole in the Amazon Web Services Security Token Service API Reference .
dict
Specifies the full POSIX identity, including user ID (Uid ), group ID (Gid ), and any secondary groups IDs (SecondaryGids ), that controls your users' access to your Amazon Elastic File Systems (Amazon EFS). The POSIX permissions that are set on files and directories in your file system determines the level of access your users get when transferring files into and out of your Amazon EFS file systems.
Uid (integer) -- [REQUIRED]
The POSIX user ID used for all EFS operations by this user.
Gid (integer) -- [REQUIRED]
The POSIX group ID used for all EFS operations by this user.
SecondaryGids (list) --
The secondary POSIX group IDs used for all EFS operations by this user.
(integer) --
string
The Amazon Resource Name (ARN) of the Identity and Access Management (IAM) role that controls your users' access to your Amazon S3 bucket or Amazon EFS file system. The policies attached to this role determine the level of access that you want to provide your users when transferring files into and out of your Amazon S3 bucket or Amazon EFS file system. The IAM role should also contain a trust relationship that allows the server to access your resources when servicing your users' transfer requests.
string
[REQUIRED]
A system-assigned unique identifier for a Transfer Family server instance that the user is assigned to.
string
[REQUIRED]
A unique string that identifies a user and is associated with a server as specified by the ServerId . This user name must be a minimum of 3 and a maximum of 100 characters long. The following are valid characters: a-z, A-Z, 0-9, underscore '_', hyphen '-', period '.', and at sign '@'. The user name can't start with a hyphen, period, or at sign.
dict
Response Syntax
{
'ServerId': 'string',
'UserName': 'string'
}
Response Structure
(dict) --
UpdateUserResponse returns the user name and identifier for the request to update a user's properties.
ServerId (string) --
A system-assigned unique identifier for a Transfer Family server instance that the account is assigned to.
UserName (string) --
The unique identifier for a user that is assigned to a server instance that was specified in the request.