Ubuntu opens port 22

Scenario

You need to use the xshell tool to connect to the Ubuntu server via ssh. Default port 22.

result

General Connection

Command line connection

//Connect directly to ssh remote machine [email protected] through command
Or telnet 192.168.67.128 22

analyze

There is no problem with the ip and port.
Check whether the server port 22 is enabled.
lsof -i:22

//Restart is required after installation sudo apt-get install openssh-server openssh-client 

service ssh start
ssh localhost
lsof -i:22

SSH remote connection access

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