Display apps and occupied ports (Linux)
PROBLEM:Â My app is not starting, because port is already in use!
SOLUTION: Find it and kill it 🙂
netstat -tulpn
Will provide nice table with all info you migh like, truncated outpus below:
|
1 2 3 4 |
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.0.1:9770 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:5940 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN - |
sudo ss -tulpn
More fresh, more detailed (i like it more than netstat)
|
1 2 3 |
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port udp UNCONN 0 0 224.0.0.251:5353 0.0.0.0:* users:(("chrome",pid=3222,fd=260)) udp UNCONN 0 0 224.0.0.251:5353 0.0.0.0:* users:(("chrome",pid=3269,fd=131)) |
Now you can find what is “eating” your ports and you are able to debug errors 🙂
Note: If you cannot see the PID, use sudo to execute the command