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.
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 |