Change Standalone Mode to Master/Slave
Standalone ClearOS servers can also act as replicates. The Master/Slave mode of operation is only available in the Professional/Business versions of ClearOS and not the Community or Home versions. It is unofficially possible to change from Standalone to Master/Slave.
Please take a configuration backup first and store it in a safe place so you can revert if necessary.
For ClearOS 5.2 you can change the way that Webconfig references the LDAP server by setting the following parameter in command line:
mode = master
The recommended way of changing from Standalone to Master/Slave method is to reinstall ClearOS. However, the following steps have been successfully used to convert a Standalone Directory Server to a Master Directory Server without having to reset the directory. The best sequence of commands is not clear but the following worked. It is not a formal method. You have been warned.
Install “Master/Slave Synchronization” from the Marketplace
Remove the following file: /var/clearos/mode/mode.conf
In the ClearOS web-based administration tool, go to “System - Settings - Master/Slave” in the menu. Set the mode to “Master”.
In Webconfig → Server → Directory → Publish Policy change to “Local Network”
Run the following commands:
Reboot both servers
Check that users and certificates have replicated on the slave. Have a look at the messages log for clearsyncd errors