1

Is it possible to modify the entries in the cached lookup? I need to temporarily change the resolution of an IP address of a domain name to something else. I can't wait until DNS updates.

Sorry, forgot to mention that the interface of the server has DNS set to itself. DNS server is running.

3

Create an authoritative zone in your Windows 2003 DNS with the copy of the updated zone.

This is a common practice (for instance) to rewrite the company's web IP address or to block a site.

4
  • i thought that you're not supposed to make an authoritive zone for domains that you do not own/manage.
    – Mike
    Apr 8 '10 at 4:43
  • 1
    In your own network you do whatever you want! :)
    – lrosa
    Apr 8 '10 at 4:59
  • I would do it absolutely the same way. Apr 8 '10 at 5:20
  • Good! Nice to be helpful!
    – lrosa
    Apr 8 '10 at 5:34
0

You can edit the hosts file (under c:\windows\system32\drivers\etc) to put an IP and hostname combination which will override the DNS resolver. Just remember to remove the entry when you're done to avoid any confusion in the future.

6
  • I've done that... but it still resolves the address to the other IP
    – Mike
    Apr 8 '10 at 4:30
  • Did you flush the local DNS cache? ipconfig -flushdns Apr 8 '10 at 4:32
  • Yes, I have flushed the DNS cache. Still resolving the old IP
    – Mike
    Apr 8 '10 at 4:37
  • The .../etc/hosts file is used by local (e.g. the machine in with the file is) resolver. The DNS server does not read the .../etc/hosts file when does name resolutions for clients
    – lrosa
    Apr 8 '10 at 5:08
  • It works only for server itself, not for clients. Apr 8 '10 at 5:17

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