tcpdump You want to track all incomming http-Headers on your Webserver? sudo tcpdump -A -s 10240 ‚tcp port 80′ | egrep –line-buffered „^……..(GET |HTTP\/|POST |HEAD )|^[A-Za-z0-9-]+: “ | sed -r ’s/^……..(GET |HTTP\/|POST |HEAD )/\n\1/g‘ Show the HTTP Requests only: sudo tcpdump -A -s 10240 ‚tcp port 80′ | egrep „^……..(GET |HTTP\/|POST |HEAD )|^[:alnum:]+: “ | sed -r ’s/^……..(GET |HTTP\/|POST |HEAD )/\n\1/g‘ capture for a specific URL string (only inside the url’s path) sudo tcpdump -s0 -A -vv | grep „myPathString“…