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How to flush DNS cache

· Performance Zone

See Gartner’s latest research on the application performance monitoring landscape and how APM suites are becoming more and more critical to the business, brought to you in partnership with AppDynamics.

Sometimes it's good to know how to flush the DNS cache on your Linux or Windows box. Here is how to do it:

Linux

Restart the nscd daemon. In case it is not installed install it first
 apt-get install nscd  
then type the command
 sudo /etc/init.d/nscd restart  
or
 sudo service nscd restart  
There are a few alternatives to flush the DNS cache under Linux. See this blog posting to get a more complete overview.

Windows

Open a command shell and type
 ipconfig /flushdns  

The Performance Zone is brought to you in partnership with AppDynamics.  See Gartner’s latest research on the application performance monitoring landscape and how APM suites are becoming more and more critical to the business.

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