Easily capture a good quality webm of a movie clip with ffmpeg.

This simple one-liner will capture a high-quality webm file from a movie. 4.4 Thu May 07 jason@Yog-Sothoth 0: $ ffmpeg -i inputmovie.avi -ss 51:43.02 -t 7 -c:v libvpx -b:v 3200k -an -sn -copyts -threads 4 guns1.webm4.4 Thu May 07 jason@Yog-Sothoth 0: $ ffmpeg -i inputmovie.avi -ss 51:43.02 -t 7 -c:v libvpx -b:v 3200k -an -sn … Read more

How to use ipgrab to capture TCP packets that are travelling through a network interface.

How to use ipgrab to capture TCP packets. The ipgrab command when run as root is very useful for capturing information about network packets that are traveling through your network interfaces. In this example I am capturing packets from my wlan0 interface. ubuntu ~ $ sudo ipgrab -i eth0 > capture.log ipgrab 0.9.10 Listening on … Read more