# Motion

Related articles

- Webcam_setup

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

Motion can be called with the `-c` option to define a specific configuration file (as is the case with motionEye)

If you do not specify `-c` or the filename you give Motion does not exist, Motion will search for the configuration file called 'motion.conf' in the following order:

1. Current directory from where motion was invoked
2. Then in a directory called '.motion' in the current users home directory (shell environment variable `$HOME`). E.g. `/home/goofy/.motion/motion.conf`
3. `/etc/motion/`

The default configuration file (`/etc/motion/motion.conf`) is well commented so it is easy to find which options are required and how to set them (ie `rotate 90`)

By default Motion 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.

Category:

- Imaging