Quick Tip: How To Flush DNS Cache In Linux, Windows and Mac OSX

There is a simple command for every operating system for quickly cleaning the DNS cache. On Linux and Mac, the command must be typed in a terminal. In Windows, type the command in cmd.exe (Start > Run, type cmd.exe):

Linux:

Firstly, make sure you have nscd installed:

sudo apt-get install nscd

Then:

sudo /etc/init.d/nscd restart

Mac OS X:

lookupd -flushcache

Leopard and later:

dscacheutil -flushcache

Windows:

ipconfig /flushdns