Linux commands tutorial that shows you how to change the /"default listening port 22 to another one/". This is a good option if you want to protect your Linux machine even more against SSH brute force attacks. In this lesson, I will use the #netstat command to check the current ports running on the Ubuntu 20.04 server. These commands work on Red Hat Enterprise Linux, CentOS Linux, Linux Mint, Kali Linux and all other distributions. You will need elevated privileges.

Easy Linux Tips has 20 years of system administration experience and 12 years of Linux server administration experience specializing in Linux commands. Easy Linux Tips uses real-world tasks to demonstrate how and why you should use Linux commands. Learn not just commands per se, but commands that are actually used in the real world.

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