When you have setup an LVS you will need to administer it. Here are the tools you can use.
Log in to both boxes and issue the command:
Or, check /var/log/messages for a line like this:
pulse[$pid]: STARTING PULSE AS BACKUP
You could simple reboot the active machine. Otherwise, stop the service pulse for a moment on the active server. The backup will discover this and configure the floating IP.
On the active machine, issue:
# /etc/init.d/pulse stop
# sleep 60
# /etc/init.d/pulse start
Use the piranha web interface, located on port 3636 of either one of the load balancers. Remember to copy /etc/sysconfig/ha/lvs.cf to the backup machine as well.
After you have altered the configuration, restart pulse on the active machine. (Be aware; this makes services unavailable for a couple of seconds.
[services are printed]
# /etc/init.d/pulse restart
[services should be printed in a couple of seconds.]