5.7. Synchronizing Configuration Files
After configuring the primary LVS router, there are several configuration files that must be copied to the backup LVS router before you start the cluster.
These files include:
/etc/sysconfig/ha/lvs.cf — the configuration file for the LVS routers.
/etc/sysctl — the configuration file that, among other things, turns on packet forwarding in the kernel.
/etc/sysconfig/iptables — If you are using firewall marks, you should synchronize one of these files based on which network packet filter you are using.
The /etc/sysctl.conf and /etc/sysconfig/iptables files do not change when you configure the cluster using the Piranha Configuration Tool.