How to check for listening ports in Linux?
You can use the following command to view the ports that are currently listening:
- Use the netstat command:
netstat -tuln
This command will display all the TCP and UDP ports that the current system is listening on.
- Use the ss command:
ss -tuln
The “ss” command can also display information about the TCP and UDP ports currently being listened on.
- Utilize the lsof command:
lsof -i -P -n | grep LISTEN
This command will display all network connections that are currently being listened to, including the port numbers and process information.
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