角色                    内网ip                外网ip
haproxy服务器   192.168.8.81     192.168.8.252
web1服务器       192.168.8.83     -
web2服务器       192.168.8.84     -

global
log         127.0.0.1 local2     # 日志
chroot      /var/lib/haproxy
pidfile     /var/run/haproxy.pid
maxconn     4000
user        haproxy
group       haproxy
daemon
stats socket /var/lib/haproxy/stats
defaults
mode                    http
log                     global
option                  httplog
option                  dontlognull
option http-server-close
option forwardfor       except 127.0.0.0/8
option                  redispatch
retries                 3
timeout http-request    10s
timeout queue           1m
timeout connect         10s
timeout client          1m
timeout server          1m
timeout http-keep-alive 10s
timeout check           10s
maxconn                 3000
listen haproxy3-monitoring *:80                # Haproxy Monitoring 的使用端口：80
mode http
option forwardfor
option httpclose
stats enable
stats show-legends
stats refresh 5s
stats uri /stats
stats realm Haproxy\ Statistics
stats auth testuser:test1234
stats admin if TRUE
default_backend app-main
frontend main
bind *:80
option http-server-close
option forwardfor
default_backend app-main
backend app-main
balance roundrobin
option httpchk HEAD / HTTP/1.1\r\nHost:\ localhost
server server1 192.168.8.83:80 check
server server2 192.168.8.84:80 check

f. 配置rsyslog：
vim /etc/rsyslog.conf，去掉如下行的注释：

g. 创建rsyslog的haproxy配置文件：
vim /etc/rsyslog.d/haproxy.conf，写入如下内容：

local2.=info     /var/log/haproxy-access.log    # 访问日志
local2.notice    /var/log/haproxy-info.log      # haproxy执行信息

h. 重启rsyslog：
systemctl restart rsyslog
i. 启动haproxy：
systemctl start haproxy
j. 关闭apache：
systemctl stop httpd