Saturday, 20 October 2012

Clear DNS cache

The ipconfig /flushdns command allow you to flush and reset the contents of the DNS client resolver cache. During DNS troubleshooting, if necessary, you can use this procedure to discard negative cache entries from the cache, as well as, any other dynamically added entries.
Resetting the cache does not eliminate entries that are preloaded from the local Hosts file. To eliminate these entries from the cache, edit the hosts file using a text editor.

To clear DNS Cache in client, do the following:

  • Start
  • Run
  • Type "cmd" and press enter
  • In the command window type "ipconfige /flushdns"

If everything has been run correctly you will received the following message "Successfully flushed the DNS Resolver Cache."  If you receive an error, "Could not flush the DNS Resolver Cache: Function failed during execution.", follow the Microsoft KB Article 919746 to enable the cache.