Solved

Name Resolution after re-subnetting

Posted on 2016-08-25
4
42 Views
Last Modified: 2016-08-26
Comcast replaced their router last week and for some reason the could not set the LAN IP Address to where the old one was (192.168.0.2) so I had to re-subnet the network around the router (got to love Comcast). The network isn't that big so I didn't think it would take that long but I am running it to name resolution issues. One user complained her scanning was slow and referring to the server by IP brought the speed back so something is going on with name resolution.

It is a 2012 R2. The server is the DNS and points to itself. Here are some symptoms:

1) When I open up a command prompt on the server and ping itself (ping Server) what I get back are 4 "Reply from ::1: time<1ms"
2) In the forward lookup zone I have two NS Records of servers long past. How do you delete those?

I missed changing something from the old IP to the new. Any ideas?
0
Comment
Question by:LockDown32
[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
  • 2
  • 2
4 Comments
 
LVL 4

Accepted Solution

by:
Stephen McTigue earned 500 total points
ID: 41770827
Have you tried the following option within DNS:

1. Scavenge Stale Resource Records
2. Update Server Data Files
3. Clear Cache

See screenshot attached showing the location within DNS.

I hope this is helpful.
0
 
LVL 4

Expert Comment

by:Stephen McTigue
ID: 41770830
Here's the screenshot
MS_DNS_options.PNG
0
 
LVL 15

Author Comment

by:LockDown32
ID: 41770837
No screen shot attached but I knew where the options were. Will let you know if it worked.
0
 
LVL 15

Author Comment

by:LockDown32
ID: 41771904
It wasn't name resolution. It was indexing. Caused everything to run slow. Thanks for the input.
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

The following article is comprised of the pearls we have garnered deploying virtualization solutions since Virtual Server 2005 and subsequent 2008 RTM+ Hyper-V in standalone and clustered environments.
The article will show you how you can maintain a simple logfile of all Startup and Shutdown events on Windows servers and desktops with PowerShell. The script can be easily adapted into doing more like gracefully silencing/updating your monitoring s…
In this Micro Tutorial viewers will learn how to use Boot Corrector from Paragon Rescue Kit Free to identify and fix the boot problems of Windows 7/8/2012R2 etc. As an example is used Windows 2012R2 which lost its active partition flag (often happen…
In this Micro Tutorial viewers will learn how to restore their server from Bare Metal Backup image created with Windows Server Backup feature. As an example Windows 2012R2 is used.

707 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