Scott's Weblog The weblog of an IT pro specializing in cloud computing, virtualization, and networking, all with an open source view

Clearing the DNS Cache in Leopard

In previous versions of Mac OS X, I could use this command to flush the DNS resolver cache:

lookupd -flushcache

However, in Mac OS X version 10.5 “Leopard,” this command no longer works! I had an occasion today where I needed to flush the DNS resolver cache due to a configuration error in the lab. Fortunately a quick Google search turned up this page, where I found that the correct command to use in Leopard is this one:

dscacheutil -flushcache

Works like a champ!

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