1.下载haproxy安装包haproxy-1.4.21.tar.gz

2.解压安装

#tar -zxvf haproxy-1.4.21.tar.gz

#cd haproxy-1.4.21

#more README      ----查看与linux内核版本一致的参数

 - linux22     for Linux 2.2

 - linux24     for Linux 2.4 and above (default)

 - linux24e    for Linux 2.4 with support for a working epoll (> 0.21)

- linux26     for Linux 2.6 and above

 - solaris     for Solaris 8 or 10 (others untested)

 - freebsd     for FreeBSD 5 to 8.0 (others untested)

 - openbsd     for OpenBSD 3.1 to 4.6 (others untested)

 - cygwin      for Cygwin

 - generic     for any other OS.

 - custom      to manually adjust every setting

#make TARGET=linux26 PREFIX=/usr/local/haproxy

#make install PREFIX=/usr/local/haproxy

3.拷贝配置文件模板

#cp examples/haproxy.cfg /usr/local/haproxy/conf/

haproxy是http或tcp负载，调度算法也有好几种。后续会陆续更新完善。