# mkdir /etc/keepalived/
# cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
# cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
# cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
# ln -s /usr/local/keepalived/sbin/keepalived /sbin/
# service keepalived restart
Stopping keepalived: [FAILED]
Starting keepalived: [ OK ]
# service keepalived status
keepalived (pid 12092) is running...
# chkconfig keepalived on
# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:50:56:84:04:2c brd ff:ff:ff:ff:ff:ff
inet 192.168.1.66/24 brd 192.168.1.255 scope global eth0
inet 192.168.200.16/32 scope global eth0
inet 192.168.200.17/32 scope global eth0
inet 192.168.200.18/32 scope global eth0
inet6 fe80::250:56ff:fe84:42c/64 scope link
valid_lft forever preferred_lft forever
3: sit0: <NOARP> mtu 1480 qdisc noop
link/sit 0.0.0.0 brd 0.0.0.0
4、有关keepalived.conf的配置项
[root@HKBO keepalived]# more keepalived.conf
! Configuration File for keepalived
#全局定义块，包含邮件定义部分，
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id LVS_DEVEL //负载均衡器标识，在一个网络内，它应该是唯一的
}
#VRRP实例定义块，负责负载均衡器之间的失败切换
vrrp_instance VI_1 {
state MASTER //只有MASTER和BACKUP 2种状态，主为MASTER，从为BACKUP，使用大写
interface eth0 //监控的网络接口
virtual_router_id 51 //同一实例下virtual_router_id必须相同
priority 100 //定义优先级，数字越大，优先级越高
advert_int 1 //MASTER与BACKUP负载均衡器之间同步检查的时间间隔，单位是秒
authentication { //验证类型和密码
auth_type PASS
auth_pass 1111
}
virtual_ipaddress { //虚拟ip地址virtual_ipaddress,可以定义多个
192.168.200.16
192.168.200.17
192.168.200.18
}
}