Flush dns cache when you can t access a newly registered domain name in your system. You can simply flush your dns cache anytime to get new entry.

To flush DNS cache in Microsoft Windows (Win XP,win ME,Win 2000)

• Start -> Run ->type cmd

• In command prompt,type ipconfig /flushdns

• Done! You Window DNS cache has just been flush.
  

To flush DNS cache in Linux ,restart the nscd daemon :

• To restart the nscd daemon, type /etc/rc.d/init.d/nscd restart in your terminal

• Once you run the command your linux DNS cache will flush.

To flush DNS cache in Mac OS X Leopard :

• Type lookupd -flushcache in your terminal to flush the DNS resolver cache.

ex: bash-2.00a$ lookupd -flushcache

• Once you run the command your DNS cache (in Mac OS X) will flush.

To flush DNS cache in Mac OS X :

• Type dscacheutil -flushcache in your terminal to flush the DNS resolver cache.

ex: bash-2.00a$ dscacheutil -flushcache

• Once you run the command your DNS cache (in Mac OS X Leopard) will flush.