ubuntu check process on port
sudo lsof -i:22how to open port by fuser
root@exampleuser-X55CR:~# fuser -v -n tcp 80
root@exampleuser-X55CR:~# fuser -v -n tcp 80
USER PID ACCESS COMMAND
80/tcp: root 3846 F.... nc
root@exampleuser-X55CR:~#Copyright © 2021 Codeinu
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