How to Find and Kill a Process that is Using a Particular Port

There may be a case when you want to Find and Kill a Process that is Using a Particular Port so that you can run some other application that utilizes that particular port.You can check the port used by the process from the command below. 

netstat -lpn |grep :80

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tcp    0     0   :::80   :::*     LISTEN    8448/httpd
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kill -9  8448

Now your port 80 is free.

*Note 8448 is the process id in above case.