AWS Transfer Family preserves SFTP client IPs behind load balancers

AWS Transfer Family added source-IP preservation for SFTP servers using VPC-hosted endpoints behind a Network Load Balancer.

By twenty8digital · AI-assisted briefingPublished 29 Sept 2026

Conceptual digital network illustration accompanying this technology brief

AI-generated conceptual illustration from the twenty8digital archive. Not a documentary image of this announcement.

Announcement: 17 Sept 2026
Coverage: Global
Primary source: AWS ↗

What changed?

What should you keep in mind?

Proxy Protocol v2 carries the client address into logs, events and custom identity-provider authentication. Previously those flows could see the load balancer’s private address. The feature is enabled per server and is available wherever Transfer Family is supported.

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Source announcement: 17 Sept 2026. This is an original summary, not independent on-the-ground reporting.

AWS ↗

Last updated: 29 Sept 2026. Editorial policy & corrections

AWS Transfer Family preserves SFTP client IPs behind load balancers

What changed?

What should you keep in mind?

Go to the source

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