Author Topic: How does DNS update when using a separate DHCP server?  (Read 591 times)

TRothlis

  • Zen Apprentice
  • *
  • Posts: 11
  • Karma: +0/-0
    • View Profile
How does DNS update when using a separate DHCP server?
« on: February 18, 2016, 09:39:32 pm »
We're running Zentyal 4.2.1.3 with DNS Server 4.2.0.3. The Zentyal server is strictly a domain controller. A separate firewall appliance is acting as the DHCP server and pointing to the Zentyal server as the DNS and WINS server. Names of some PCs which have been joined to the Zentyal managed domain do not resolve and I'm trying to figure out why this occurs.

My understanding is that when Zentyal is both the DNS and DHCP server it automatically refreshes DNS when DHCP leases are granted. How does it add or update DNS entries when there is a separate DHCP server? Does it come from WINS?

Of the PCs listed in the domain which do not resolve, I have regular debugging access to one of them and it is (perhaps not so coincidentally) an Ubuntu box that was joined to the domain via PBIS. Is there a configuration that should be applied to Linux joined PCs to cause DNS updates after obtaining DHCP leases?

Thanks for any guidance you can offer.