Networking & TransferCLI Reference

$netstat

Print network connections, routing tables, interface statistics, and listening ports.

Syntax DefinitionPOSIX standard

netstat [OPTIONS]

Linux Community2.4k Online

Chat with real Linux users, learn new commands & get free cheat sheet PDFs.

Join Telegram

Try `netstat` Live in Interactive Sandbox

Zero-install client simulation with real-time feedback.

Open in Fullscreen Workspace↗

bash — terminal

AST Sandbox (Free)

Shortcuts:

Overview & How netstat Works

`netstat` (Network Statistics) provides comprehensive visibility into incoming and outgoing network connections, listening TCP/UDP ports, routing tables, and interface metrics.

Common Flags & Command Options

Flag / Option	Description
-t	Display TCP network connections.
-u	Display UDP network connections.
-l	Show only listening server sockets.
-p	Show the PID and program name to which each socket belongs.
-n	Show numerical addresses and port numbers instead of resolving hostnames.

Practical Real-World Examples

Example #1Check all listening ports and services

netstat -tuln

Run in Sandbox ⚡

Lists all open TCP and UDP ports in numeric format.

Sample Output:

Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN