Solved

DNS update issue

Posted on 2013-01-07
6
179 Views
Last Modified: 2013-01-17
Hi,

We have a group of PCs being move from one network to another.  Since then, our WIN2K8 DNS still shows the old IPs.  

Is the change suppose to be automatic?  

Please advise.

Many thanks.....
0
Comment
Question by:nav2567
6 Comments
 
LVL 21

Assisted Solution

by:yo_bee
yo_bee earned 100 total points
ID: 38753360
I am assuming that these Networks are not talking to each other from the wording of your question.

The DNS entires will remain until they hit the Salvage TTL.
Once the time expires the DNS maintenance route (if setup) will purge old non-active DNS records.
0
 
LVL 20

Assisted Solution

by:netcmh
netcmh earned 100 total points
ID: 38753362
It is supposed to be automatic. You can however run an ipconfig /flushdns to reset the update
0
 
LVL 10

Assisted Solution

by:Gajendra Rathod
Gajendra Rathod earned 100 total points
ID: 38753366
DNS Scavenging

In case you are sure about host name and IP address assign to it , then DNS entry can be manually deleted.
0
IT, Stop Being Called Into Every Meeting

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

 
LVL 8

Accepted Solution

by:
jpgobert earned 200 total points
ID: 38753510
By default, when a PC registers on a network it updates DNS with its current IP information.  If the networks you're referring to are connected, the DNS servers are communicating updates to each other, and the PC's network configurations haven't been changed to prevent DNS registrations then the A records should be updating.  

If connectivity exists, the DNS servers are supposed to be communicating with each other and the workstation's TCP/IP advanced DNS config haven't been changed to disallow registrations then I'd start checking my systems to find out why it isn't happening.  Review your DNS server logs for any warnings or errors and test connectivity between your DNS servers.

The workstation setting I'm referring to can be found under the network connection properties, TCP/IP v4, Advanced, DNS, Register this connection's addresses in DNS.
0
 

Author Closing Comment

by:nav2567
ID: 38786747
Thanks.
0
 
LVL 20

Expert Comment

by:netcmh
ID: 38787666
Thanks for the grade. Good luck.
0

Featured Post

Do You Know the 4 Main Threat Actor Types?

Do you know the main threat actor types? Most attackers fall into one of four categories, each with their own favored tactics, techniques, and procedures.

Join & Write a Comment

Disabling the Directory Sync Service Account in Office 365 will stop directory synchronization from working.
A procedure for exporting installed hotfix details of remote computers using powershell
This tutorial will walk an individual through the process of configuring their Windows Server 2012 domain controller to synchronize its time with a trusted, external resource. Use Google, Bing, or other preferred search engine to locate trusted NTP …
This tutorial will show how to configure a single USB drive with a separate folder for each day of the week. This will allow each of the backups to be kept separate preventing the previous day’s backup from being overwritten. The USB drive must be s…

705 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

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now