Ian Carnaghan

How to view a list of all port numbers in Linux

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  1. Type in the following command in the command line:
    cat /etc/services
  2. Hit the enter key
  3. And now a list of TCP and UDP port numbers will appear together with the service name that’s using them.

Image Credits: Photo by Isis França on Unsplash.

Last Updated On04/07/2018

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Ian Carnaghanhttp://www.carnaghan.com
I am a software developer and online educator who likes to keep up with all the latest in technology. I also manage cloud infrastructure, continuous monitoring, DevOps processes, security, and continuous integration and deployment.
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