AWS Security ChangesHomeSearch

AWS transfer documentation change

Service: transfer · 2025-10-16 · Documentation medium

File: transfer/latest/userguide/edit-server-config.md

Summary

Added warning note about avoiding NLBs/NAT gateways in front of Transfer servers

Security assessment

Security-adjacent recommendation about infrastructure architecture, but primarily focuses on cost/performance rather than directly addressing vulnerabilities. Reference to infrastructure security considerations provides defense-in-depth guidance.

Diff

diff --git a/transfer/latest/userguide/edit-server-config.md b/transfer/latest/userguide/edit-server-config.md
index cb0959e9c..dbf2c4080 100644
--- a//transfer/latest/userguide/edit-server-config.md
+++ b//transfer/latest/userguide/edit-server-config.md
@@ -69,0 +70,4 @@ You can change the server's properties on this page by choosing **Edit** :
+###### Note
+
+Avoid placing Network Load Balancers (NLBs) or NAT gateways in front of AWS Transfer Family servers. This configuration increases costs and can cause performance issues. For more details, see [Avoid placing NLBs and NATs in front of AWS Transfer Family servers](./infrastructure-security.html#nlb-considerations)
+