If you’re not familiar with HAProxy, you’re missing out! HAProxy is a very intelligent high-availability reverse proxy that operates all the way up to Layer 7. Unlike Nginx (another good choice), HAProxy is not a webserver, it is designed with only high availability and load balancing in mind. Another great feature is that it’s a lot cheaper than your typical Layer 7 Load Balancer, free :).

There are plenty of good articles out there on HAProxy, but I couldn’t find any Debian/Ubuntu packages for the latest version (1.4.15). The Ubuntu 11.04 repo’s newest version is 1.4.8, but if you want some of the cool new features of 1.4.9-1.4.15, you have to build it from scratch. This process isn’t too painful, but I’ve got a lot of servers to put HAProxy on and I don’t want dpkg / apt-get to freak out and install the old HAProxy in order to satisfy a dependency.

For this reason, I’ve created an Ubuntu 11.04 x64 HAProxy package with TCP Splicing, Full Transparent Proxies and PCRE enabled:

HA-Proxy version 1.4.15 2011/04/08
Copyright 2000-2010 Willy Tarreau <w@1wt.eu>

Build options :
  TARGET  = linux26
  CPU     = native
  CC      = gcc
  CFLAGS  = -O2 -march=native -g -fno-strict-aliasing

Default settings :
  maxconn = 2000, bufsize = 16384, maxrewrite = 8192, maxpollevents = 200

Encrypted password support via crypt(3): yes

Available polling systems :
     sepoll : pref=400,  test result OK
      epoll : pref=300,  test result OK
       poll : pref=200,  test result OK
     select : pref=150,  test result OK
Total: 4 (4 usable), will use sepoll.

Feel free to grab haproxy_1.4.15_amd64.deb (502k SHA1: 8b2ecf05544e0f6531e50bf40261e0b112db61e9)
You can also grab the sources from here: http://www.stevekamerman.com/haproxy/

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