[Csync2] Using Csync2 when hosts are not resolved by dns

[Vadim Comanescu]

Hello, 

I managed to compile and install csync2-1.34 on solaris for my latest project for synchronizing files in a heartbeat/pacemaker cluster. 
Now i'm faced with a very interesting situation, where the hostnames that need to be synchronized are not resolved by dns since the communication between them is done through a separate network dedicated for the heartbeat. The problem I have that each time a node would join the cluster i would have to modify the hosts file on each node of the cluster so that csync2 would be able to propagate the changed files to the new node. 
I would like to know what would be the main reason that all the definitions of a host in the cfg file are made using its hostname and not the host's IP? Would it be possible for it to use the IP's? 

Vadim