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

Nslookup disaplying server unknown

Posted on 2015-01-24
3
387 Views
Last Modified: 2015-01-24
I have noticed whenever I run Nslookup againt a server name , I get the server Unknown. Though there is no DNS issue.

Can someone help explain and fix this issue ?

Thank you

C:\Users\administrator>nslookup dc1
Server:  UnKnown
Address:  192.168.80.140

Name:    dc1.Test.local
Address:  192.168.80.140
0
Comment
Question by:jskfan
  • 2
3 Comments
 
LVL 77

Accepted Solution

by:
arnold earned 500 total points
ID: 40568760
this particular event is not an error, this means there is no entry in the reverse 192.168.80 reverse vzone 80.168.192.inn-addr.arpa a ptr record for 140 pointing to sername.yourdomain

140 in ptr servername.yourdomain.com.

This likely means your DNS server does not have the reverse zone configured/included.
0
 

Author Comment

by:jskfan
ID: 40568788
You are correct..
I create Reverse lookup zone and added PTR record for the server and NSlookup shows the name of the server instead of Unknown

Thank you
0
 

Author Closing Comment

by:jskfan
ID: 40568790
Thank you
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

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

In this article, I am going to show you how to simulate a multi-site Lab environment on a single Hyper-V host. I use this method successfully in my own lab to simulate three fully routed global AD Sites on a Windows 10 Hyper-V host.
This script can help you clean up your user profile database by comparing profiles to Active Directory users in a particular OU, and removing the profiles that don't match.
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 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…

791 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