heartbeat 配置

yum localinstall * --nogpgcheck
 cd /usr/share/doc/heartbeat-3.0.4/
cp authkeys ha.cf haresources /etc/ha.d/
logfacility    local0
keepalive 2
deadtime 10
warntime 10
initdead 60
udpport    694
bcast    eth0        # Linux
auto_failback on
watchdog /dev/watchdog
node    desktop150.example.com
node    desktop152.example.com
ping 192.168.0.116
respawn hacluster /usr/lib64/heartbeat/ipfail 这个地方一定要改成lib64否则启动会报错
apiauth ipfail gid=haclient uid=hacluster

vi haresources
desktop150.example.com IPaddr::192.168.0.100/24/eth0 httpd

chmod 600 authkeys
vi authkeys
auth 3
3 md5 Hello!

service httpd start
/etc/init.d/heartbeat start

elinks 192.168.1.100 首先会显示desktop150的网页信息

重启dekstop150，进行心跳检测，会显示desktop152的网页信息