Flush DNS Cache – Linux, Windows, Mac (clear dns negative entry)

Many folks have visited my blog through search engines looking for flush dns commands and tools for Linux, Mac and Windows machines. Here is a simple one page for all OS flush dns information. Look no further for flush dns, command to flush dns, ifconfig flushdns, flush dns linux, flush dns on a linux box, osx java dns negative lookup caching

Flush DNS cache for Microsoft Windows
To do this simply enter: ipconfig /flushdns in a command prompt.

* Start -> Run -> type cmd
* type ipconfig /flushdns (in command prompt) and press Enter
*This would flush out dns cache from your machine.  Read More HERE

This should work on Windows XP, Windows 2000, and possibly other versions of Windows.

Flush DNS cache for LINUX
In linux if you want to flush DNS cache you need to restart nscd daemon

* type /etc/rc.d/init.d/nscd restart in your terminal
* or sudo /etc/init.d/nscd restart
* Once you run the command your linux DNS cache will flush.

Flush DNS Cache on MAC OS X
Mac OS X – Clearing / flushing the DNS Cache:

* For Leopard, type in your terminal: sudo dscacheutil -flushcache
* For Tiger, type in your terminal: lookupd -flushcache
* Once you run the command your DNS cache (in Mac OS) will flush.

Got any other tip or trick up your sleeve, do share it here, and post your views and comments!!