Solved

DNS problems on windows server

Posted on 2013-12-10
10
291 Views
Last Modified: 2013-12-17
Greetings!

I am having problems with dns server.

I recently changed the email server setting on clients applications. Now every few days (about 5-7 days) the clients dont resolve this server domain name anymore. (the server is on the internet)
When I do a restart of the service on windows server the resolving works again. (this server is on intranet)

I use Windows Server Standard 2008. There is no error in dns event log.

Thanks for suggestions!
0
Comment
Question by:celjan79
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
  • 3
10 Comments
 
LVL 18

Expert Comment

by:Andrew Davis
ID: 39710637
use DCDIAG to test the server.
see http://technet.microsoft.com/en-us/library/cc731968.aspx

if you have problems understanding the report, then feel free to post a copy and we will have a look.

Cheers
Andrew
0
 

Author Comment

by:celjan79
ID: 39710641
I forgot to wrote sth else. When the resolving isnt working every domain name that is on that same server where I got email is not resolving.
But if I try some other domain names they work.
0
 
LVL 18

Expert Comment

by:Andrew Davis
ID: 39710656
When it isnt working can the server resolve the name, or is it just the clients?

Do the clients have any secondary DNS settings?

are you connecting to the server as a local machine on your domain, or a public domain name. Eg server01.mydomain.local or mail.mydomain.com

can you paste a screenshot of the record that you have set in the DNS server?

Also please do the DCDIAG as this is the most likely tool to identify the issue.

Cheers
Andrew
0
Use Case: Protecting a Hybrid Cloud Infrastructure

Microsoft Azure is rapidly becoming the norm in dynamic IT environments. This document describes the challenges that organizations face when protecting data in a hybrid cloud IT environment and presents a use case to demonstrate how Acronis Backup protects all data.

 

Author Comment

by:celjan79
ID: 39710702
When the resolving isnt working both the server and the client cant resolve domain names on that server. Then when I do restart everything is OK.

The client dont have and secondary DNS settings.

The domain name which does not resolve is public (on internet).
0
 
LVL 16

Expert Comment

by:Nyaema
ID: 39710734
You need to give us some more information so that we can assess the impact of the changes you made.
What were the settings before and what did you change them to?
0
 

Author Comment

by:celjan79
ID: 39710736
I run the dcdiag and found out:
- Win Time service was disabled (I now enabled it)

Now everything is marked as PASSED except this I get this message:

 Starting test: SystemLog
    An Warning Event occurred.  EventID: 0x000003FC
       Time Generated: 12/11/2013   09:41:24
       EvtFormatMessage failed, error 15100 Win32 Error 15100.
       (Event String (event log = System) could not be retrieved, error
       0x3afc)
    An Warning Event occurred.  EventID: 0x000003FC
       Time Generated: 12/11/2013   09:41:25
       EvtFormatMessage failed, error 15100 Win32 Error 15100.
       (Event String (event log = System) could not be retrieved, error
       0x3afc)
    An Warning Event occurred.  EventID: 0x000003FC
       Time Generated: 12/11/2013   09:41:42
       EvtFormatMessage failed, error 15100 Win32 Error 15100.
       (Event String (event log = System) could not be retrieved, error
       0x3afc)
    ......................... SERVER2008 passed test SystemLog
0
 

Author Comment

by:celjan79
ID: 39710806
Nyaema: I did not change anything on the server. The only change I made was changing POP3 and SMTP server setting on Outlook on client computers.
0
 
LVL 18

Accepted Solution

by:
Andrew Davis earned 500 total points
ID: 39712916
If your local domain and internet domain are close then it is possible that the DNS server is looking for the node IP in its local file rather than forwarding the request to the internet.

I would create an (A) record entry in your DNS to link to your mail server.
if you are unsure how then see http://www.tutorialspoint.com/shorttutorials/adding-host-a-dns-records-in-windows-server-2008-r2

This would then stop the DNS server having to forward requests for this address.

Cheers
Andrew
0
 

Assisted Solution

by:celjan79
celjan79 earned 0 total points
ID: 39713741
AndrewJDavis:
When the resolving is not working when I use ping I get nothing. As if domain name would note be avaliable.

I found this article and it seems that this is known problem on Win2008 server.
http://support.microsoft.com/kb/2508835
0
 

Author Closing Comment

by:celjan79
ID: 39723465
For now I fixed this using restart from command prompt and using timer.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

New Windows 7 Installations take days for Windows-Updates to show up and install. This can easily be fixed. I have finally decided to write an article because this seems to get asked several times a day lately. This Article and the Links apply to…
Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
This tutorial will give a short introduction and overview of Backup Exec 2012 and how to navigate and perform basic functions. Click on the Backup Exec button in the upper left corner. From here, are global settings for the application such as conne…
This tutorial will walk an individual through configuring a drive on a Windows Server 2008 to perform shadow copies in order to quickly recover deleted files and folders. Click on Start and then select Computer to view the available drives on the se…

738 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