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
Solved

DNS Tracing

Posted on 2014-11-12
7
104 Views
Last Modified: 2014-12-09
I have an unusual issue where I have a DNS entry from a vmware server that seems to be getting a bad DNS entry. So at some point I imagine it had a bad entry. When I change the entry it seems to be good for a bit but then it reverts back to the old one. It's a pretty small IT team so it would appear it's like a server with the old entry is somehow publishing the old/bad entry as newer.

Is there any way to trace on a DNS server where an entry came from and see where things are going to?
0
Comment
Question by:Brandon_V
  • 4
  • 3
7 Comments
 
LVL 17

Expert Comment

by:OriNetworks
ID: 40437969
Where are you seeing the old dns entry? I'm not sure if you mean an old dns record is listed in a zone or if a client is getting a DNS server assigned via DHCP to use when looking up DNS records.

For loggings at the DNS Server level:
Open DNS, rightclick the root and select properties
Under Debug Logging tab select Log packets and select your required options from there.
0
 

Author Comment

by:Brandon_V
ID: 40438094
so for example I have
a record that looks like below

ServerA IP: 10.1.1.1

The DNS record SHOULD be ServerA IP: 10.1.1.2

So if I change the record so there is a static entry that says ServerA IP: 10.1.1.2 what is happening is say 2-3 hours later it is back to being ServerA IP: 10.1.1.1

just side bar info the DNS is an Active Directory integrated DNS zone
0
 
LVL 17

Expert Comment

by:OriNetworks
ID: 40440263
if you do ipconfig on serverA is 10.1.1.2 the only IP address assigned?

If any other network interfaces exists it may request a new address from DHCP. Also, if you have multiple DNS servers you should probably make sure it is deleted on all or make sure DNS is correctly synchronizing between DNS servers
0
Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 

Author Comment

by:Brandon_V
ID: 40447249
Nop single NIC, no other interfaces picking up  the bad IP.
0
 
LVL 17

Expert Comment

by:OriNetworks
ID: 40450677
Does the ipconfig command list any additional ip addresses assigned to the interface?
0
 

Author Comment

by:Brandon_V
ID: 40450813
No it doesn't. I did find the issue, which is someone had configured the servers ILO to have the same name as the host. So when it updated DNS it messed it up.

Still though is there a way to setup the logging so that I could have seen that an update from Server X had the update or that the update came from hardware Address XXXXXXXX in the environment for example ?
0
 
LVL 17

Accepted Solution

by:
OriNetworks earned 500 total points
ID: 40474424
The only way I am aware of being able to find that information is to setup debugging as I described. It is low level information and it would give you the information you are looking for. Additionally there may be other utilities out there to help parse the results.
0

Featured Post

Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Windows DNS Server Caching 3 38
Reset server 2008 R2 default permissions 2 22
User wants to log with Username or Email 4 45
domian network access 5 20
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…
A procedure for exporting installed hotfix details of remote computers using powershell
This tutorial will walk an individual through locating and launching the BEUtility application to properly change the service account username and\or password in situation where it may be necessary or where the password has been inadvertently change…
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…

792 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