Howtoforge shows you how to set up file synchronization between two Debian Squeeze servers with Unison.

his tutorial shows how to set up file synchronization between two Debian Squeeze servers with Unison. Unison is a file-synchronization tool similar to rsync, but the big difference is that it tracks/synchronizes changes in both directions, i.e., files changed on server1 will be replicated to server2 and vice versa.

I do not issue any guarantee that this will work for you!

  Setting Up Unison File Synchronization Between Two Servers On Debian Squeeze