Solved

NS lookup shows a different for domain ?

Posted on 2011-09-21
5
213 Views
Last Modified: 2012-05-12
Hi

I registered a domain name with Godaddy and added a couple of namservers

ns1.domainns.com - 123.xxx.xxx.1
ns1.domainns.com - 123.xxx.xxx.1
These nameserver records were created on my own DNS server (Windows 2008)
I also setup an A record www.domainns.com --- 123.xxx.xxx.5

Tested the setup with URL's resolving to the IP address specified on my DNS server

After a week and a bit a ping test and nsloolup of my domain showed a different IP (belonged to  domains.theplanet.com)  

I went back into my Godaddy account to check the host records and the IP address of the ns records I created hadn't changed. Not sure how this happened.  Can anyone explain how this could be and how to stop it ???

Thanks
0
Comment
Question by:Cobraiti
  • 3
  • 2
5 Comments
 
LVL 21

Expert Comment

by:Papertrip
ID: 36578317
Goto networktools.com and put your IP into the box, leave the default Express search checked.

Double check things like A/PTR record, whois output -- make sure it all looks right.  If you see something there you were not expecting, paste it here.  Try to not sanitize the data too much.
0
 
LVL 21

Expert Comment

by:Papertrip
ID: 36578346
I'm going to guess you didn't setup a PTR record to match your A record.  When you did the ping/nslookup tests that showed domains.theplanet.com, did you use the IP or hostname?  Is your server hosted at Softlayer by any chance?
0
 

Author Comment

by:Cobraiti
ID: 36578606
I setup a PTR record as well  

Used the ping test first to see where the domain was resolving too and then did a nslookup of the IP address which went to domains.theplanet.com instead of my dns server ns1.domainns.com

The DNS is on a dedicated box in our datacenter.

Don't seem to under how this happened ?

I've had to turn of DNS services for the moment. But has this happenend to anyone before. Is there a security setting to be enabled on my DNS server
0
 
LVL 21

Accepted Solution

by:
Papertrip earned 500 total points
ID: 36578635
Did you run the IP at networktools.com?
Are you testing from an internal network only?
Are you certain you have reverse DNS authority delegated to you for that IP?

If the results from networktools.com, or any external DNS query, shows you the domains.theplanet.com result, then either:
A.  You don't have DNS authority of that IP from your service provider
B.  The old PTR record for that IP has a super-high TTL and hasn't expired from whatever cache you might be hitting.

Pasting outputs of commands you run while testing will make this go faster.
0
 

Author Closing Comment

by:Cobraiti
ID: 36707632
Found out the problem - user error !

Thanks for pointing it out
0

Featured Post

Maximize Your Threat Intelligence Reporting

Reporting is one of the most important and least talked about aspects of a world-class threat intelligence program. Here’s how to do it right.

Join & Write a Comment

If you have a multi-homed DNS setup in windows, you can have issues with connectivity to the server that hosts the DNS services (or even member servers of your domain if this same DNS server is a DC). This is because windows registers all of its IPs…
One of the most often confused topics in the area DNS is the idea of GLUE records. Specifically, what they are, when they are needed, when they are provided, and how they are created. First, WHAT IS GLUE? To understand GLUE, you must first under…
It is a freely distributed piece of software for such tasks as photo retouching, image composition and image authoring. It works on many operating systems, in many languages.
This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory. NOTE: For Outlook 2016 and 2013 perform the exact same steps. Open a new email: Click the New email button in Outlook. Start typing the address: …

706 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now