linux how to see ports in use
sudo netstat -tulpn | grep LISTEN
sudo lsof -i:22 # see a specific port such as 22linux how to see ports in use
sudo netstat -tulpn | grep LISTEN
sudo lsof -i:22 # see a specific port such as 22linux query port use by pid
$ sudo ss -lptn 'sport = :80'
State Local Address:Port Peer Address:Port
LISTEN 127.0.0.1:80 *:* users:(("nginx",pid=125004,fd=12))
LISTEN ::1:80 :::* users:(("nginx",pid=125004,fd=11))Copyright © 2021 Codeinu
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