This article is on how to convert your Linux box into a surveillance device.
Let us get started with a test record.
The following code is a good example to record video on CentOS 6.10 via command line. Login to your CentOS 6 server via SSH and run the following command. Type q to quit recording.
ffmpeg -f v4l2 -framerate 25 -video_size 640_480 -i /dev/video0 Videos/ffmpeg_video_2018-10-09_13-15-10.mp4