Clear DNS cache in various OS

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

1. Start -> Run -> type cmd
2. in command prompt, type ipconfig /flushdns
3. Done! You Window DNS cache has just been flush.

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

1. To restart the nscd daemon, type /etc/rc.d/init.d/nscd restart in your terminal
2. Once you run the command your linux DNS cache will flush.

To flush the DNS cache in Mac OS X Leopard:-

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

To flush the DNS cache in Mac OS X:-

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

To flush the DNS cache in Solaris:-

Do a

-          # ps -ef | grep nscd

This will find the PID for the NSCD daemon.

Now, do a

-          #pkill <PID>

or

-          #kill <PID>

Now, check if the nscd process is killed by using

-          # ps -ef | grep nscd

Now, start the nscd daemon by using

-          #/usr/sbin/nscd

This should start the nscd daemon and there you go, you have flushed the DNS Cache in your Solaris Server