Haproxy 是一个开源的负载均衡和反向代理软件，其提供了高可用的网络服务。其一般是应用于web服务，但同时也能为SMTP和终端服务等提供可靠的支持。
1、下载安装haproxy
wget ftp:
//195.220.108.108/linux/centos/6.8/os/x86_64/Packages/haproxy-1.5.4-3.el6.x86_64.rpm --下载
rpm -ivh haproxy-
1.5.
4-
3.el6.x86_64.rpm -安装
2、配置Haproxy
cp /etc/haproxy/haproxy.cfg /etc/haproxy/
haproxy.cfg.bak
vi /etc/haproxy/haproxy.cfg-c：Only checks config file
and exits with code 0 if no error was found, or exits with code 1 if a syntax error was found./usr/local/haproxy/sbin/haproxy -c -f /etc/haproxy/haproxy.cfg 检查配置文件Configuration file
is valid
/etc/haproxy/haproxy.cfg文件
更多关于Haproxyacl配置请参考博文：http://blog.csdn.net/tantexian/article/details/50015975
global
log 127.0.
0.1 local0 info
chroot /containers/loadbalancer/lb-gxevnalt/
stats socket /containers/loadbalancer/lb-gxevnalt/
stats.sock
user haproxy
group haproxy
maxconn 100000
tune.maxaccept 100000
daemon
defaults
option dontlognull
retries 3
option redispatch
maxconn 100000
timeout client 50s
timeout server 50s
timeout connect 5s
listen lb-gxevnalt_80
0.0.
0.0:
80
mode http
balance leastconn
log global
log-format
"%Tl",%{+Q}ci,
"%fi:%fp",%{+Q}bi,%{+Q}r,%ST,%B,%{+Q}hr,%
Tt
option forwardfor
option http-server-
close
capture request header Host len 255
capture request header User-Agent len
255
capture request header Referer len 255
capture request header Cookie len 255
timeout http-
request 10s
timeout http-keep-
alive 55s
server lb-gxevnalt_80_i-calrmvwp_80
10.53.
0.86:
80 cookie i-calrmvwp_80 weight
10 check inter
3000 rise
3 fall
5
server lb-gxevnalt_80_i-jkhngdlw_80
10.53.
0.87:
80 cookie i-jkhngdlw_80 weight
10 check inter
3000 rise
3 fall
5
acl aaa_com hdr(host) -
m str aaa.com
acl www_aaa_com hdr(host) -
m str www.aaa.com
redirect prefix http://shop.aaa.com code 301 if aaa_com or www_aaa_com
listen lb-gxevnalt_443
0.0.
0.0:
443
mode tcp
balance leastconn
no log
timeout client 60s
timeout server 60s
server lb-gxevnalt_443_i-calrmvwp_443
10.53.
0.86:
443 weight
10 check inter
5000 rise
3 fall
5
server lb-gxevnalt_443_i-jkhngdlw_443
10.53.
0.87:
443 weight
10 check inter
5000 rise
3 fall
5
假若想访问监控界面：配置stats uri /haproxy项，重启服务：
设置防火墙：
iptables -I INPUT -p tcp --dport
5000 -
j ACCEPT
service iptables save
service iptables restart
监控界面：
3、开机启动
chkconfig haproxy on
service haproxy start或/usr/local/haproxy/sbin/haproxy -f /etc/haproxy/haproxy.cfg
编译安装haproxy开启支持SSL
Haproxy配置文档
负载均衡-haproxy安装配置
HAproxy均衡负载部署和配置文件详解
负载均衡之Haproxy配置详解（及httpd配置）
CentOS6下Haproxy的安装配置
转载于:https://www.cnblogs.com/qiyebao/p/5805605.html
