How to clear DNS Cache

Most of the DNS clients cache the results of name resolution requests (ie. The DNS clients will temporarily store the website names you visited recently. )This process speeds up name resolution if multiple lookups are done to the same address.

Sometimes you may need to flush or clear the cache in DNS clients to get the proper result.
You can use the following steps to clear the cache in DNS client.

Windows
Run the following in your command prompt. (ie. Start -> Run  and then type cmd to get the command prompt)
ipconfig /displaydns

To clear your cache, type in the following:
ipconfig /flushdns


Linux
The nscd daemon restart will clear the DNS cache:
/etc/rc.d/init.d/nscd restart


 Mac OS X Leopard

Run the following command in terminal:
dscacheutil -flushcache

 Mac OS X (Tiger)
Run the following command in terminal:
lookupd -flushcache

This will clear the DNS cache in you local machine.