TLDR
Enter a command. For example: exiv2, odps table, trash cli.

tcpdump

 
Dump traffic on a network. More information: https://www.tcpdump.org.
 
  • List available network interfaces:
     
    tcpdump -D
     
  • Capture the traffic of a specific interface:
     
    tcpdump -i {{eth0}}
     
  • Capture all TCP traffic showing contents (ASCII) in console:
     
    tcpdump -A tcp
     
  • Capture the traffic from or to a host:
     
    tcpdump host {{www.example.com}}
     
  • Capture the traffic from a specific interface, source, destination and destination port:
     
    tcpdump -i {{eth0}} src {{192.168.1.1}} and dst {{192.168.1.2}} and dst port {{80}}
     
  • Capture the traffic of a network:
     
    tcpdump net {{192.168.1.0/24}}
     
  • Capture all traffic except traffic over port 22 and save to a dump file:
     
    tcpdump -w {{dumpfile.pcap}} port not {{22}}
     
  • Read from a given dump file:
     
    tcpdump -r {{dumpfile.pcap}}

This is a tldr pages (source, CC BY 4.0) web wrapper for cheat-sheets.org. All commands, popular commands, most used linux commands. Referrals. Progressive Web Application (PWA) version to install on your device.