HAProxy

Some useful links to explain the concepts of HAProxy

Concepts

Official Documentation

• https://cbonte.github.io/haproxy-dconv/

• https://linuxacademy.com/howtoguides/posts/show/topic/12012-introduction-to-haproxy

• https://www.digitalocean.com/community/tutorials/an-introduction-to-haproxy-and-load-balancing-concepts

Configuration

• https://serversforhackers.com/using-ssl-certificates-with-haproxy

• https://cbonte.github.io/haproxy-dconv/configuration-1.5.html

• https://coelhorjc.wordpress.com/2015/03/26/how-to-load-balance-an-http-server-using-with-haproxy-or-pound/

• http://blog.haproxy.com/haproxy/haproxy-and-ssl/

• https://www.digitalocean.com/community/tutorials/how-to-implement-ssl-termination-with-haproxy-on-ubuntu-14-04

• http://ubtutorials.com/tutorial/436/how-implement-ssl-termination-haproxy-ubuntu-1404

• https://www.howtoforge.com/high-availability-load-balancer-haproxy-heartbeat-debian-etch

• http://support.severalnines.com/entries/23612682-Install-HAProxy-and-Keepalived-Virtual-IP-

• http://behindtheracks.com/2014/04/redundant-load-balancers-haproxy-and-keepalived/

• https://serversforhackers.com/load-balancing-with-haproxy

• http://www.linuxnix.com/heartbeat-clustering/

• https://www.digitalocean.com/community/tutorials/how-to-create-a-high-availability-setup-with-heartbeat-and-floating-ips-on-ubuntu-14-04

• https://www.digitalocean.com/community/tutorials/how-to-create-a-high-availability-setup-with-corosync-pacemaker-and-floating-ips-on-ubuntu-14-04

• https://marc.cortinasval.cat/blog/2013/12/04/a-cheap-web-balancer-nginxhaproxypacemaker/

• http://support.severalnines.com/entries/23612682-Install-HAProxy-and-Keepalived-Virtual-IP-

• https://www.howtoforge.com/setting-up-a-high-availability-load-balancer-with-haproxy-keepalived-on-debian-lenny

• https://www.freecodecamp.org/news/how-we-fine-tuned-haproxy-to-achieve-2-000-000-concurrent-ssl-connections-d017e61a4d27

• https://delta.blue/blog/haproxy-timeouts

Tuning & Hardening

SNI on HAProxy

• http://stuff-things.net/2016/11/30/haproxy-sni/

• http://www.networkinghowtos.com/howto/reload-haproxy-config-with-minimal-downtime/

• http://blog.haproxy.com/2012/04/13/enhanced-ssl-load-balancing-with-server-name-indication-sni-tls-extension/

• https://medium.com/@siddharth.d/securing-haproxy-and-nginx-via-http-headers-54020d460283

Troubleshooting & Log Parsing

• https://www.linux.com/blog/how-analyze-haproxy-logs

• http://logz.io/blog/monitor-haproxy-elk-stack/

• gforcada/haproxy_log_analysis

• https://serversforhackers.com/so-you-got-yourself-a-loadbalancer

• http://www.networkinghowtos.com/howto/viewing-haproxy-statistics/

• https://www.datadoghq.com/blog/monitoring-haproxy-performance-metrics/

• https://www.datadoghq.com/blog/how-to-collect-haproxy-metrics/