- https://www.haproxy.com/blog/enhanced-ssl-load-balancing-with-server-name-indication-sni-tls-extension/#choose-a-backend-using-sni-tls-extension - 서버 네임에 따라 다른 서비스 backend 로 연결하는 방법 - Maintain Affinity Based on SSL Session ID - https://www.haproxy.com/blog/maintain-affinity-based-on-ssl-session-id/ https://www.haproxy.org/#down http://cbonte.github.io/haproxy-dconv/2.5/configuration.html#4.2-stick store-response http://cbonte.github.io/haproxy-dconv/2.5/configuration.html#7.3.5-req.payload_lv