Monday, December 26, 2011

How to flush DNS cache in Windows/Linux/Mac Os


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 the 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 the DNS cache in Mac OS X Leopard:-
- type lookupd -flushcache in your terminal to flush the DNS resolver cache.
ex: bash-2.05a$ lookupd -flushcache
- Once you run the command your DNS cache (in Mac OS X) will flush.
To flush the DNS cache in Mac OS X:-
- type dscacheutil -flushcache in your terminal to flush the DNS resolver cache.
ex: bash-2.05a$ dscacheutil -flushcache
- Once you run the command your DNS cache (in Mac OS X Leopard) will flush.

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