Once you've set up a cluster, DNS zones should be synchronized automatically. If, for some reason, the servers become out of sync, you can manually synchronize them, as you'll see in this tutorial.
1) Locate the DNS Functions category.
2) Go to Synchronize DNS Records.
Here, you have the option of synchronizing one or all domains to this server or to all servers. The latest zone files for the domain(s) will be located in the cluster and then copied to the correct server(s).
3) We'll leave ours set to the default, which is to synchronize all zones to all servers.
4) When you've decided which option you want, click Synchronize.
Synchronization is now complete. That's all there is to it!
This is the end of the tutorial. You now know how to synchronize DNS zones within your cluster.