CCTV Software on Linux

[grafix]

Hi! Am not sure if this is the correct thread for this but am looking for a good CCTV software that runs on Linux. Been around the web and most are either out of the budget (meaning it would be cheaper to get a Windows License  plus the software) than buying these I have found.

Is there any software that you could recommend so that I don't have to buy software from that guy hehehe