How to flush a computer's DNS cache

To flush DNS for a computer running Windows, please follow these steps:

1. On your local machine, open a command prompt.
2. Within the prompt, type ipconfig/flushdns. 

   3. Click Enter to clear the DNS cache.

    You should see the following message:

To flush DNS for a computer running Mac OS, please follow these steps:

1. On your local machine, open a terminal window.
2. Within the prompt, type lookupd -flushcache. 
3. Click Enter to clear the DNS cache.

To flush DNS for a computer running Mac OS 10.5 Leopard, please follow these steps:

1. On your local machine, open a terminal window.
2. Within the prompt, type dscacheutil -flushcache.
3. Click Enter to clear the DNS cache.