Link Search Menu Expand Document


Filter network traffic packets using regular expressions. More information:

  • Capture traffic of all interfaces:

ngrep -d any

  • Capture traffic of a specific interface:

ngrep -d {{eth0}}

  • Capture traffic crossing port 22 of interface eth0:

ngrep -d {{eth0}} port {{22}}

  • Capture traffic from or to a host:

ngrep host {{}}

  • Filter keyword 'User-Agent:' of interface eth0:

ngrep -d {{eth0}} '{{User-Agent:}}'