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