We help IT Professionals succeed at work.

Windows 2003 DHCP not updating DNS

mpearson99
mpearson99 asked
on
1,003 Views
Last Modified: 2012-05-10
I have a windows 2003 domain with one 1 domain controller and 1 DHCP server which also runs DNS. My primary DC1,  has not been getting updates from my DHCP server. I check the A records on both servers and there is no updates of the new address of any computer put on the network in the last few days. If i do a ipconfig /registerdns command I can ping the XP computer and get the correct ip address. the DHCP computer is a secoundary DNS server. I have config the DHCP to " Enable DNS dynamic updates according to the settings below" > always dynamically update DNS A & PTR record.I also see a lot of old stale records in the forward lookup. I will need to setup salvaging later. This is not a new network and I been having dns issues for some time.
Comment
Watch Question

Dear
Will you kindly check have you update DNS entries under your DNS server (both primary and secondary)  and DHCP server , see if this helps
CERTIFIED EXPERT

Commented:
AFAIK a DHCP server will attempt to register records with whatever server it's network cards use to resolve DNS.
If this is itself ( a secondary server ) these updates will fail.
Updates can only be made to the master.
CERTIFIED EXPERT

Commented:
Is there any reason you don't want the DHCP server to be a domain controller.
Using AD integrated DNS zones would make life much easier, and give you some resilience in case your other DC broke.

Author

Commented:
I am part of a larger Organazation and that is how they want the different domains setup
CERTIFIED EXPERT

Commented:
Fair enough, just change the network card settings on your DHCP server then to use the domain controller as it's primary DNS server.
Its also worth checking that the DHCP server has credentials set to update the DNS zone  (If updates are secured).  The credentials it uses might have to be a member of the "DnsUpdateProxy" group, though that might only apply to domain integrated zones.

Author

Commented:
Is there a dhcp tool to check if the  dynamic update is working
Senior Active Directory Engineer
CERTIFIED EXPERT
Top Expert 2012
Commented:
Unlock this solution and get a sample of our free trial.
(No credit card required)
UNLOCK SOLUTION

Commented:
Is your DNS option for DHCP configured properly?
And select Always update.

Gain unlimited access to on-demand training courses with an Experts Exchange subscription.

Get Access
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Empower Your Career
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Unlock the solution to this question.
Thanks for using Experts Exchange.

Please provide your email to receive a sample view!

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.