4.7. 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 LVS.
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 LVS using the Piranha Configuration Tool.