AWS Transfer Family now supports source IP preservation for SFTP servers behind a Network Load Balancer (NLB)
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AWS Transfer Family now preserves the client's source IP address using Proxy Protocol v2 when an NLB is placed in front of SFTP servers with VPC-hosted endpoints.
- Client source IP is preserved in logs, events, and presented to custom identity providers during authentication
- Enables IP-based auditing, access controls, and compliance requirements
- Previously, NLB replaced client source IP with its own private IP address
- Feature can be enabled per SFTP server through console, CLI, or API
- Available in all AWS Regions where AWS Transfer Family is supported
This enhancement improves visibility and security for organizations using NLBs with Transfer Family SFTP servers.
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