I think I got this going. I'm not sure what exactly fixed it. I rebooted the MaaS server (region controller and cluster controller in this case) and also changed the nameserver I was using so I wasn't asking an external server that couldn't reach the private IP of the MaaS DNS server to do recursive lookups for me (which would obviously fail).
As you can see in the previous comment to this one, I looked up the DNS and it was wrong, but I was using the internal MaaS DNS server. So, maybe restarting did it? ** Changed in: maas (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1225695 Title: Node DNS does not stay updated To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/maas/+bug/1225695/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs