Hi there. I have the following multi-server setup: - my.domain (panel) -- ns1.domain (dns) -- ns2.domain (dns) When creating a DNS zone in the panel, it does not seem to replicate onto the dns only nameservers. How do I get the zones to automatically replicate onto the nameservers?
Either you did not set the other DNS systems to be mirrors of the first dns, or there is an issue with the server connections. See debug instructions to find out why your other dns servers are not able to connect to the master anymore. https://www.faqforge.com/linux/debugging-ispconfig-3-server-actions-in-case-of-a-failure/
I am sure I did set the DNS servers as slaves, however in the event that I didn't, is there a way to change this post installation?
That's not what I meant. The server ns2 must be set to be a mirror of the ns1, the settings is named 'Is mirror of' and can be found under System > server services. When you create a DNS record in the panel, you must create it on ns1 and it gets automatically mirrored to ns2 then. See Tutorial from @Taleman and also the multiserver tutorials which show that as well.