You could also install the cPanel DNS ONLY edition on them and use cpanel's clustering so it does it how it likes. IIRC, the DNS ONLY edition is free.
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Originally posted by SpiritAu setup cpanel to sync records on server 1 + 2.
Setup server 3 to rsync /var/named and reload named every 30 - 60 mins. You now have a dns cluster...
ns1 - cpanel1
ns2 - cpanel2
ns3 - dns
I am confused now...
None of the cpanel(hostingServer1 and 2) and hostingServer3 servers will have nameserver enabled. They will somehow add the records in server1 and server2(dns cluster servers)
Under cpanel server do I need to set up the ns1 and ns2 to point to server1 and server2 (the Debian DNS boxes) and then do what you suggest with rsync?
If the server2 is act as a slave then the named.conf will be different and using just rsync wont work. Am I right?