Trying to troubleshoot DNS and finally got lost and not sure what to do next.
What I ended up with is that when I update a master zone, Bind increases the serial in the Zone Records File, but for some reason the slave zone on second server(s) is never updated.
Checking rndc zonestatus [zone] returned that the serial had not increased, so no wonder the slave zones were never updated.
Restarting named.service for bind returned the correct increased serial when checking with rndc, and later the slave zones were updated as well.
Thoughts or ideas about what could be causing this?
If you’ve created them in Webmin, you probably need to do a reload using those buttons in the top right corner while in the Bind module. But why not alter them in Virtualmin?
Ah, so Apply configuration button?
This webmin/virtualmin instance has no servers created, it is basically a server which has the cluster configured and controls some master DNS zones which should not be edited on public servers, only available to be queried on.
So reloading using the button is fine after doing edits if that is required.