# tcpdump > Dump traffic on a network. > More information: . - List available network interfaces: `tcpdump {{[-D|--list-interfaces]}}` - Capture the traffic of a specific interface: `sudo tcpdump {{[-i|--interface]}} {{eth0}}` - Capture all TCP traffic showing contents ([A]SCII) in console: `sudo tcpdump -A tcp` - Capture the traffic from or to a host: `sudo tcpdump host {{www.example.com}}` - Capture the traffic from a specific interface, source, destination and destination port: `sudo tcpdump {{[-i|--interface]} {{eth0}} src {{192.168.1.1}} and dst {{192.168.1.2}} and dst port {{80}}` - Capture the traffic of a network: `sudo tcpdump net {{192.168.1.0/24}}` - Capture all traffic except traffic over port 22 and [w]rite to a dump file: `sudo tcpdump -w {{dumpfile.pcap}} port not {{22}}` - [r]ead from a given dump file: `tcpdump -r {{dumpfile.pcap}}`