Nginx+Keepalived 作負載均衡器

先參考上一篇博客：

http://jinmy.blog.51cto.com/664391/1266270

1.安裝 keepalived

tar zxvf keepalived-XXXX.tar.gz
./configure --prefix=/usr/local/keepalived --with-kernel-dir=/usr/src/kernels/2.6.XXXXXXXX/
make && make install
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
mkdir /etc/keepalived
cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
service keepalived start

2.Master與Backup 的配置文件

Master：

! Configuration File for keepalived
global_defs {
   notification_email {
      15251076067@163.com
   }
   notification_email_from king_819@163.com
   smtp_server smtp.163.com
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}
# VIP1
vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 51
    mcast_src_ip 192.168.18.211
    priority 100
    advert_int 5
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.18.200
    }
}

BackUP：

! Configuration File for keepalived
global_defs {
   notification_email {
      15251076067@163.com
   }
   notification_email_from king_819@163.com
   smtp_server smtp.163.com
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}
# VIP1
vrrp_instance VI_1 {
    state BACKUP
    interface eth0
    virtual_router_id 51
    mcast_src_ip 192.168.18.212
    priority 90
    advert_int 5
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.18.200
    }
}