在实际项目中需要用到haproxy做TCP转发，下面主要针对haproxy的安装及TCP数据转发配置进行说明
一、安装Haproxy
(1)编译安装Haproxy
mkdir -p /data01/haproxy tar -zxvf haproxy-1.7.1.tar.gz cd haproxy-1.7.1 make TARGET=linux26 ARCH=x86_64 PREFIX=/data01/haproxy make install PREFIX=/data01/haproxy mkdir /data01/haproxy/conf mkdir /data01/haproxy/lib mkdir /data01/haproxy/run mkdir /data01/haproxy/logs cp haproxy.cfg /data01/haproxy/conf/
(2)修改Haproxy配置
vi /etc/syslog.conf local1.* /data01/haproxy/logs/haproxy.log local0.* /data01/haproxy/logs/haproxy.log vi /etc/rsyslog.d/haproxy.conf local1.* /data01/haproxy/logs/haproxy.log local0.* /data01/haproxy/logs/haproxy.log vi /etc/sysconfig/syslog SYSLOGD_OPTIONS="-r -m 0" servie rsyslog restart
(3)启动haproxy
sbin/haproxy -f conf/haproxy.cfg
sbin/haproxy -f -d conf/haproxy.cfg #检查哪些服务启动OK
二、Haproxy TCP数据转发
global
log 127.0.0.1 local0
log 127.0.0.1 local1 notice
ulimit-n 40960
maxconn 4000
pidfile /data01/haproxy/run/haproxy.pid
user XXX
nbproc 2
daemon
defaults
mode tcp
option redispatch
option abortonclose
retries 3
timeout http-request 300s
timeout queue 1m
timeout connect 300s
timeout client 1m
timeout server 1m
timeout http-keep-alive 300s
timeout check 300s
maxconn 4096
listen stats
bind *:9093
balance roundrobin
mode tcp
server s1 XXX:5000 weight 1
参考：http://www.echojb.com/hp-web-develop/2016/11/03/251213.html
http://www.cnblogs.com/yjmyzz/p/haproxy.html
http://blog.amutu.com/%E6%9C%AA%E5%88%86%E7%B1%BB/2012/09/21/haproxy_for_portforward/
原文：http://www.cnblogs.com/moonandstar08/p/6696763.html