How to Flush DNS cache in Mac OS X

Flushing your DNS cache in Mac OS X is actually really easy, and there are two different commands to use, one for Leopard and for Tiger. Depending on your version of OS X, open your Terminal and follow the appropriate directions below:

Flush DNS Cache in Mac OS X 10.5, Mac OS X 10.6, or OS X 10.7 Lion
Launch Terminal and issue the following command:

dscacheutil -flushcache
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