Link to home
Start Free TrialLog in
Avatar of lanman777
lanman777

asked on

DNS entries in Windows 2008 R2 - changing the ip address of a workstation. DNS does not update

We replaced an old pc with a new one. The new pc has the same name as the old one. However, the IP address is different.
DNS is not picking up the IP address of the workstation even though it is named the same as the old. I had to delete the old pc name from DNS and had the user reboot the pc to see if it will register in DNS with the new IP address.
How do I get dns to do this automatically. I don't want to have to delete and DNS entry for a pc after I change it's ip address. I want it to automatically clean it up every 5 days or so.
Avatar of skrga
skrga
Flag of Croatia image

Go to DNS server management:
Forward lookup zones > right click domain > properties:

 User generated image
By the way you can do:
cmd > ipconfig /registerdns to Refreshes all DHCP leases and re-registers DNS names

(no need to reboot client...)
ASKER CERTIFIED SOLUTION
Avatar of Netman66
Netman66
Flag of Canada image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of lanman777
lanman777

ASKER

IF I add my dhcp server to the DNSUpdateProxy group and in the DHCP properties have; ...
1. Enable DNS dynamic Updates checked .
2. Dynamically update DNS A and PTR records only if requested by the dhcp clients checked.
3. Discard A and PTR records when lease is deleted checked.
4. Dynamically update DNS a and PTR records for DHCP clients that do not request updates checked.
Yes, I think that looks about right.

Keep in mind, existing records are still owned by the client until it is manually deleted.  All new entries after your changes should now behave as you expect.

Let us know if it still isn't behaving.