I have a CCTV camera DVR at work that only allows local login for DVR software management via a command line console (looks like a GUI you'd get on a serial console) or web login for viewing the cameras. I'd like to be able to SSH into it, but I don't know what flavor of *nix it is, nor can I login to a prompt to install packages. I can, however, remove the hard drive. If I get the drive mounted on a separate machine such that I can copy files to it, would it be possible to copy config and executable files to it in order to have an SSH server?
Manually install SSH service
ssh;openssh