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
Ask ANY Question

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

Professional Opinions
Ask a Question
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

troubleshooting Question

Microsoft DNS and DHCP not in sync.

Avatar of louisbohm
louisbohmFlag for United States of America asked on
Windows NetworkingMicrosoft Forefront ISA ServerInternet Protocols
10 Comments1 Solution2254 ViewsLast Modified:
I am running Active Directory on Windows 2003 servers (two of them to be exact).  My Win2003 servers are our companies internal DNS servers and DHCP servers.

My problem is that as users come and go in DHCP I have noticed that some times DNS gets updated some times not.  To be exact
     1. When a new machine is seen by DHCP and assigned and address most of the time a DNS PTR record is not created in DNS (but some times it is).
     2. When a DHCP record expires and the machine is not around to renew the address.  If a DNS PTR record did exits it is never deleted and I only notice it because I look in DNS and find two (or more) A recored for that same machine on different addresses.
     3. The other way I find out about the problem is when I see a machine resolving to an incorrect address.  When I look in DNS there are multiple PTR records for this host

Any idea what is going on?  In the past when I have run DNS and DHCP on unix I have gotten this to all work smoothly.

Avatar of Chris Dent
Chris DentFlag of United Kingdom of Great Britain and Northern Ireland imagePowerShell Developer
This problem has been solved!
Unlock 1 Answer and 10 Comments.
See Answers