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Friday, July 13, 2012

How to flush DNS cache

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


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  


 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.


Open a command shell and type

 ipconfig /flushdns  

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