---
title: Netstat
date: 2021-01-27 11:44:21
background: bg-slate-700
tags:
  - network
  - utility
  - port
categories:
  - Linux Command
intro: |
  This quick reference cheat sheet provides various for using netstat command.
plugins:
  - copyCode
---

## Getting Started

### Statistics

All connections on port 80

```shell script
$ netstat -anp | grep :80
```

Netstat Help

```shell script
$ netstat -h
```

### Listening

| Option           | Example              |
| ---------------- | -------------------- |
| `netstat -ltunp` | All Listening ports  |
| `netstat -ltn`   | Listening TCP ports  |
| `netstat -lun`   | Listening UDP ports  |
| `netstat -lx`    | Listening Unix ports |

### Connections

| Option        | Example             |
| ------------- | ------------------- |
| `netstat -a`  | All connections     |
| `netstat -at` | All TCP connections |
| `netstat -au` | All UDP connections |

### Statistics

| Option        | Example                |
| ------------- | ---------------------- |
| `netstat -s`  | Display statistics     |
| `netstat -st` | Display TCP statistics |
| `netstat -su` | Display UDP statistics |

### Networks

| Option        | Example                               |
| ------------- | ------------------------------------- |
| `netstat -i`  | Show network interfaces               |
| `netstat -ie` | Show network interfaces extended info |

### Routing

| Option        | Example                                 |
| ------------- | --------------------------------------- |
| `netstat -r`  | Show routing table                      |
| `netstat -rn` | Show routing table, don't resolve hosts |