环境：
代理haproxy：192.168.100.155
后台nginx：192.168.100.153-154
1.安装nginx服务器：（192.168.100.153）
yum -y install pcre-devel zlib-devel
wgetftp://ftp.linuxfan.cn/tools/nginx-1.6.0.tar.gz
tar zxvf nginx-1.6.0.tar.gz -C /usr/src/
cd /usr/src/nginx-1.6.0
useradd -M -s /sbin/nologin nginx
./configure --prefix=/usr/local/nginx--user=nginx --group=nginx &&make &&make install
cd /usr/local/nginx/html/
echo "server 192.168.100.153" > test.html
/usr/local/nginx/sbin/nginx ##启动服务
2.安装nginx服务器：（192.168.100.154）
yum -y install pcre-devel zlib-devel
wgetftp://ftp.linuxfan.cn/tools/nginx-1.6.0.tar.gz
tar zxvf nginx-1.6.0.tar.gz -C /usr/src/
useradd -M -s /sbin/nologin nginx
cd /usr/src/nginx-1.6.0
./configure --prefix=/usr/local/nginx --user=nginx--group=nginx &&make &&make install
cd /usr/local/nginx/html/
echo "server 192.168.100.154" > test.html
/usr/local/nginx/sbin/nginx ##启动服务
3.安装及配置haproxy：
yum -y install pcre-devel bzip2-devel
wget ftp://ftp.linuxfan.cn/tools/haproxy-1.4.24.tar.gz
tar zxvf haproxy-1.4.24.tar.gz -C /usr/src/
cd /usr/src/haproxy-1.4.24/
make TARGET=linux26
make install
mkdir /etc/haproxy
cd examples/
cp haproxy.cfg /etc/haproxy/
vi /etc/haproxy/haproxy.cfg ##修改配置文件如下
global
log127.0.0.1 local0 info
log127.0.0.1 local1 notice
maxconn4096
uid99
gid99
daemon
defaults
log global
mode http
option httplog
option dontlognull
retries 3
maxconn 2000
contimeout 5000
clitimeout 50000
srvtimeout 50000
listen webcluster0.0.0.0:80
option httpchk GET /index.html
balance roundrobin
server inst1 192.168.100.153:80 check inter 2000fall 3
server inst2 192.168.100.154:80 check inter 2000fall 3
:wq
cp/usr/src/haproxy-1.4.24/examples/haproxy.init /etc/init.d/haproxy
chmod +x /etc/init.d/haproxy
ln -s /usr/local/sbin/haproxy /usr/sbin/
/etc/init.d/haproxy restart
4.日志管理：
vi /etc/rsyslog.conf
去掉注释
$ModLoad imudp
$UDPServerRun 514
添加
local0.* /var/log/haproxy/ha-info.log
local1.* /var/log/haproxy/ha-notice.log
:wq
vi /etc/sysconfig/rsyslog
SYSLOGD_OPTIONS="-r -m 0 -c 2"
:wq
/etc/init.d/rsyslog restart
/etc/init.d/haproxy restart
访问测试。
tail -f /var/log/haproxy/ha-info.log