Port 22 is an ssh service. You only need to start the ssh service to execute the command "/etc/init.d/sshd? Go ahead. Then use netstat-antulp | grepsh to see if you can see the relevant information.

Linux operating system is a clone system based on UNIX operating system. It was born in [Linux Desktop] 199 1 year (this is the first time it was officially released). With the help of the Internet and the joint efforts of computer enthusiasts all over the world, it has become the most used UNIX operating system in the world today, and the number of users is still growing rapidly.