Motion
Motion is a program that monitors the video signal from cameras. It is able to detect if a significant part of the picture has changed; in other words, it can detect motion.
Installation
Install the motion package.
Configuration
Edit the /etc/motion/motion.conf
to match your configuration. By default it will use port 8080
(+1 for each camera feed), and it will be limited to localhost connections only, both the web configuration server (on port 8080
) and the camera feeds.