why the SSH port is so important?

The SSH (Secure Shell) port, typically port 22, is crucial for securely managing and accessing remote servers and devices over an encrypted network. It allows administrators to execute commands, transfer files, and perform system maintenance securely, preventing unauthorized access and protecting data integrity from potential cyber threats.
in this video, I introduce Knockd Package to secure the SSh port.
https://youtu.be/7NcGuDGIurI