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How to check for used and available ports with netstat

- 2 min read

Introduction

Section titled “ Introduction”

A quick note about checking ports with Netstat. This worked for me within Ubuntu.

How To

Section titled “ How To”
  1. Make sure Net Tools is installed
    Section titled “Make sure Net Tools is installed”

    When Netstat does not work, run the following command:

    # Open your terminal application
    sudo apt-get update
    sudo apt install net-tools
  2. Get a detailed list of all TCP and UDP connections, listening ports, and the processes using them, along with their numerical addresses and port numbers
    Section titled “Get a detailed list of all TCP and UDP connections, listening ports, and the processes using them, along with their numerical addresses and port numbers”

    Run the following command:

    # Open your terminal application
    sudo netstat -tulpen

Now you can check in the list whether a port is in use or not.

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