Solved

Nslookup when using name of server only (not FQDN), brings up no records. DNS entry?

Posted on 2013-06-28
14
683 Views
Last Modified: 2013-06-29
hi guys,

We have a multiple domain environment. I am doing an nslookup from my PC which is on the 'UK.FC.LOCAL' domain for a server called 'fcdcxi1' which is on the 'Matches.com' domain.

If I nslookup the name 'fcdcxi1' from my PC, it comes up with no records. If I log onto the server which has the forward lookup zones (i.e. the primary DNS server for Matches.com) and I do an nslookup, then it comes up instantly with the records and IP address.

If I log onto the DNS server that hosts the 'UK.FC.LOCAL' domain (i.e. the one my PC is on) and I do an nslookup, then it comes up with no entries again (same as my PC). Even though in the DNS of this server, the zone for 'matches.com' is loaded and it consists of the same details as the one for 'Matches.com'. So I don't know what entries or what else to do.

We do have multiple DNS servers across the network. But I don't know whether there's a setting that needs to be changed on the 'UK.FC.LOCAL' domain DNS servers?

Thanks
Yashy
0
Comment
Question by:Yashy
  • 7
  • 4
  • 2
14 Comments
 
LVL 11

Accepted Solution

by:
b_levitt earned 400 total points
ID: 39284235
I'm guessing the reason it's working on the matches.com domain controller is because "matches.com" is in the dns suffixes for it's tcp/ip configuration (adapter -> tcp/ip -> advanced - dns tab).  You could add this suffix to other machines on a client by client basis, but I'm not sure there is anything you can do at the server level to assume a particular domain suffix.  You have to query with the fully qualified domain - fcdcxi1.matches.com.  

You could you could also add fcdcxi1 as a cname (alias) record to your uk.fc.local domain.  The full server name would then be fcdcxi1.uk.fc.local, but you should only need to type fcdcxi1 since it's a good bet that users on the uk.fc.local domain already have that same suffix in their search list.
0
 
LVL 1

Author Comment

by:Yashy
ID: 39284777
You are right, I managed to work get this working when changing it on my own adapter settings.

Surely, there must be a way of having this work on a DNS level right? I mean, I would have thought in a multi domained environment, you would have the ability for people to look up server names via a CNAME even if it was on a different domain to the PC doing the query?
0
 
LVL 1

Author Comment

by:Yashy
ID: 39284925
Or maybe if I set up conditional forwarders?
0
What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

 
LVL 39

Expert Comment

by:footech
ID: 39284939
The only way you could do this at a DNS level would be CNAME records, as b_levitt mentioned.  But if you have a lot of hosts I doubt you're going to want to create all those records.

You can configure DNS search suffixes through Group Policy.  I think that would be the best way to handle it.  If you have multiple domains in a parent-child relationship (i.e. example.com and corp.example.com), then suffix devolution can be used to search parent domains, but when the multiple domains have completely different names you have to specify which DNS suffixes you wish to append to any searches.

Link for explanation of devolution:
http://technet.microsoft.com/en-us/library/ee683928(v=ws.10).aspx
0
 
LVL 11

Expert Comment

by:b_levitt
ID: 39284944
Agreed
0
 
LVL 1

Author Comment

by:Yashy
ID: 39285057
Thank you guys for this information. This is great stuff.  I'll test this out on my home test environment and see what I can do.

As per both of your mentions, I have added CNAME records for this particular server.
I've logged onto the servers which host the 'Matches.com' domain. And in the reverse lookup zones, I've gone and added a CNAME for this server. I've flushed dns and still nothing when I do an nslookup. Should it be working? Even though I'm doing the nslookup from a PC on the domain 'UK.FC.LOCAL'?
0
 
LVL 39

Assisted Solution

by:footech
footech earned 100 total points
ID: 39285368
If you're in the "UK.FC.LOCAL" domain and you want a query for "fcdcxi1" to resolve to "fcdcxi1.matches.com", then you need to add a CNAME record in the "UK.FC.LOCAL" forward lookup zone for "fcdcxi1" which points at "fcdcxi1.matches.com".  Nothing needs to be done in the Matches.com domain, and nothing needs to be done in any reverse lookup zones.
0
 
LVL 1

Author Comment

by:Yashy
ID: 39285980
Footech, it worked! Thank you sir!:) That's awesome.
0
 
LVL 1

Author Comment

by:Yashy
ID: 39285982
I want to thank you both for helping out. I really appreciate the help.
0
 
LVL 39

Expert Comment

by:footech
ID: 39286004
@Yashy - Glad it's working for you.  As b_levitt was the first to mention this, I feel it would be more appropriate to accept his post as the answer, and mine as an assist as all I did was provide some clarification.  You can always click the Request Attention button to re-open a question in order to reassign points.  Cheers.
0
 
LVL 1

Author Comment

by:Yashy
ID: 39286013
Yes, good point. I wanted to do that after, but didn't know how to reopen for points again. I'll proceed.
0
 
LVL 1

Author Closing Comment

by:Yashy
ID: 39287034
Thank you and apologies for the confusion. B_Levitt, well deserved points. Your first answer was the right answer:).Footech, thank you also for your input.
0
 
LVL 39

Expert Comment

by:footech
ID: 39287071
You're welcome.  I appreciate your willingness to give credit where it's due.  It's one of the things that makes a good EE member.  :)
0

Featured Post

Ransomware-A Revenue Bonanza for Service Providers

Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat.  The purpose of this eBook is to educate the reader about ransomware attacks.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Export a GPO and import a GPO 3 45
E-mail delayed during DNS server reboot 8 39
DNS entry for intranet 1 12
DNS Config for External Mail 3 7
Sometimes drives fill up and we don't know why.  If you don't understand the best way to use the tools available, you may end up being stumped as to why your drive says it's not full when you have no space left!  Here's how you can find out...
A procedure for exporting installed hotfix details of remote computers using powershell
This tutorial will show how to push an installation of Backup Exec to an additional server in both 2012 and 2014 versions of the software. Click on the Backup Exec button in the upper left corner. From here, select Installation and Licensing, then I…
This tutorial will show how to configure a new Backup Exec 2012 server and move an existing database to that server with the use of the BEUtility. Install Backup Exec 2012 on the new server and apply all of the latest hotfixes and service packs. The…

777 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