DNS requests are usually cached, that’s good as it speeds up look-ups within the same host but sometimes we will want to clear the cache so it doesn’t hold invalid values. Use the information below to flush your DNS cache...
To clear your DNS cache in Windows (Vista and 7) use the following procedure:
1) Open a command prompt [Start - Run, and then type in CMD and press Enter]
2) Right click on the Command Windows and select: "Run as Administrator"
3) Type in the following and press Enter: ipconfig /flushdns
You should get a message that your cache was cleared. For a "best practice", restart your computer after clearing the cache.
To clear your DNS cache in Windows (XP and 2003) use the
following procedure:
1) Open a command prompt [Start - Run, and then type in CMD and press Enter]
2) Type in the following and press
Enter: ipconfig /flushdns
You should get a message that your
cache was cleared. For a "best practice", restart your computer after
clearing the cache.
To clear your DNS cache in Mac (OS Tiger and below) use the following procedure:
1) Open up the Terminal Application [found in Applications -> Utilities folder]
2) In the terminal window type in the following and press Enter: lookupd -flushcache
To clear
your DNS cache in Mac (OS Leopard and above) use the following procedure:
1) Open
up the Terminal Application [found in Applications -> Utilities
folder]
2) In the
terminal window type in the following and press Enter: dscacheutil -flushcache
Article ID: 4, Created On: 12/12/2008, Modified: 4/30/2010