# Source: https://docs.datadoghq.com/ddsql_reference/data_directory/aws/aws.transfer_server.dataset.md

---
title: Transfer Family Server
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > DDSQL Reference > Data Directory > Transfer Family Server
---

# Transfer Family Server

AWS Transfer Family Server is a managed service that enables secure file transfers directly into and out of Amazon S3 or Amazon EFS using protocols like SFTP, FTPS, and FTP. It eliminates the need to manage infrastructure for file transfer workloads, providing scalability, high availability, and integration with AWS security and monitoring services.

```
aws.transfer_server
```

## Fields

| Title                                   | ID   | Type          | Data Type                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | Description |
| --------------------------------------- | ---- | ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------- |
| _key                                    | core | string        |
| account_id                              | core | string        |
| arn                                     | core | string        | Specifies the unique Amazon Resource Name (ARN) of the server.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| as2_service_managed_egress_ip_addresses | core | array<string> | The list of egress IP addresses of this server. These IP addresses are only relevant for servers that use the AS2 protocol. They are used for sending asynchronous MDNs. These IP addresses are assigned automatically when you create an AS2 server. Additionally, if you update an existing server and add the AS2 protocol, static IP addresses are assigned as well.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| certificate                             | core | string        | Specifies the ARN of the Amazon Web ServicesCertificate Manager (ACM) certificate. Required when Protocols is set to FTPS.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| domain                                  | core | string        | Specifies 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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| endpoint_details                        | core | json          | 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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| endpoint_type                           | core | 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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| host_key_fingerprint                    | core | 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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| identity_provider_details               | core | json          | 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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| identity_provider_type                  | core | 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.                                                                                                                                                                                                                                                                                                                                                                      |
| logging_role                            | core | 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 EFS events. When set, you can view user activity in your CloudWatch logs.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
| post_authentication_login_banner        | core | string        | Specifies a string to display when users connect to a server. This string is displayed after the user authenticates. The SFTP protocol does not support post-authentication display banners.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| pre_authentication_login_banner         | core | 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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| protocol_details                        | core | json          | The protocol settings that are configured for your server. Avoid placing Network Load Balancers (NLBs) or NAT gateways in front of Transfer Family servers, as this increases costs and can cause performance issues, including reduced connection limits for FTPS. For more details, see Avoid placing NLBs and NATs in front of Transfer Family. 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. |
| protocols                               | core | array<string> | 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 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.                                                                                                                                                                    |
| s3_storage_options                      | core | json          | Specifies whether or not performance for your Amazon S3 directories is optimized. If using the console, this is enabled by default. If using the API or CLI, 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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| security_policy_name                    | core | string        | Specifies the name of the security policy for the server.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| server_id                               | core | string        | Specifies the unique system-assigned identifier for a server that you instantiate.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| state                                   | core | 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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| structured_log_destinations             | core | array<string> | 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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| tags                                    | core | hstore_csv    |
| user_count                              | core | int64         | Specifies the number of users that are assigned to a server you specified with the ServerId.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| workflow_details                        | core | json          | 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.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |