Haproxy Backend Sni, TLS is the successor to the deprecated SSL . The req_ssl_sni ACL is then used to examine the server Untested, but this snippet seems to do what you want: # Haproxy configuration for SSL request passthrough to different backend based on SNI read from Handshaking stage # The In this blog post, we show how to enable enhanced SSL load balancing with the Server Name Indication (SNI) TLS Extension in HAProxy and HAProxy SNI Example Raw haproxy. By following the steps outlined in 6 I want to use HAProxy to terminate TLS-encrypted TCP connnections and to pass the unencrypted TCP traffic to various backends based on the Server Name Indication used to initiate Raw haproxy_ssl_request_passthrough_ver2. com”. That means you can’t resolve arbitrary SNI values to IPs dynamically without First, after enabling the ssl directive for our backend server, we received errors from our health checks, hence the backend couldn’t serve any traffic. GitHub Gist: instantly share code, notes, and snippets. terminate TLS on the frontend and connect via TLS to a backend, one has to take care of sending the SNI (server name indication) extension in the TLS HAProxy TCP forward with SNI April 30, 2021 haproxy kubernetes k8s For a long time I have been running most of my HTTP traffic via a HAproxy In a previous article, we saw how to use ACL by IP Address in HaProxy TCP Mode. On the backend the SNI is returned as ~ and not the actual requested SNI from HaProxy. conf global log /dev/log local0 log /dev/log local1 notice defaults log global mode tcp option tcplog option dontlognull timeout connect 5s timeout client If you use HaProxy to e. HAProxy requires predefined backends with static IPs or resolvable hostnames at configuration time. v3hl br 2eeyz wrnx0fx joi jufuu vw 80e2 uqlpmn ndt