This is still an issue. Removal of domain shared master file is deleted, but named.master.conf is not updated, causing bind to fail, causing all sites on server to fail. I'd say that is CRITICAL!
You keep telling me nsd and yadifa same as bind. So I try to switch. Both start without errors. IntoDNS both fail. My server goes unresponsive due to name resolution.
Switch back to bind. All running well, IntoDns all green, all good.
I am using multiple IP addresses and three different nameservers. Something isn't right.