CenOS5 x86下配置Nginx+keepalived主从负载均衡
CenOS5.8x86下配置Nginx+keepalived主从负载均衡一、环境：
centos5.8x86_64、nginx-0.8.46、keepalived-1.1.19
主nginx负载均衡器：192.168.1.122
辅nginx负载均衡器：192.168.1.123
vip：192.168.1.128
两台Apache Web服务器
二、安装keepalived
cd/usr/local/src
wget http://www.keepalived.org/software/keepalived-1.1.19.tar.gz
tar zxvfkeepalived-1.1.19.tar.gz
cdkeepalived-1.1.19
./configure--prefix=/usr/local/keepalived
make
makeinstall
以下三行是为了将keepalived做成服务启动方式，方便管理
cp /usr/local/keepalived/sbin/keepalived/usr/sbin/
cp/usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
cp/usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
mkdir/etc/keepalived
上面的安装过程可以写一个脚本，名字为install_keepalived.sh,内容如下所示：
#!/bin/bash
cd/usr/local/src
wget http://www.keepalived.org/software/keepalived-1.1.19.tar.gz
tar zxvfkeepalived-1.1.19.tar.gz
cdkeepalived-1.1.19
./configure--prefix=/usr/local/keepalived
make
makeinstall
cp/usr/local/keepalived/sbin/keepalived /usr/sbin/
cp/usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
cp/usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
给其执行权限即可执行了,chmod +x install_keepalived.sh。
mkdir/etc/keepalived
cd/etc/keepalived/
vimkeepalived.conf
!Configuration File for keepalived
global_defs{
notification_email {
yuhongchun027@163.com
}
notification_email_fromkeepalived@chtopnet.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id LVS_DEVEL
}
vrrp_instanceVI_1 {
state MASTER
interface eth0
virtual_router_id 51
mcast_src_ip 192.168.1.122
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