# netstat
> Displays network-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 for a specific protocol:
`netstat -p {{protocol}}`
- List information continuously:
`netstat -c`
- Print the routing table:
`netstat -nr`