# netstat

> Displays various networks related information such as open connections, open socket ports etc.

- List all ports:

`netstat -a`

- List all listening ports:

`netstat -l`

- List listening TCP ports:

`netstat -t`

- Display PID and program names:

`netstat -p`

- List information continuously:

`netstat -c`

- List routes and do not resolve IP to hostname:

`netstat -rn`

- List listening TCP and UDP ports (+ user and process if you're root):

`netstat -lepunt`