[CentOS] [OT] ssh and security DVR

Does anyone have any "security appliance" DVR, and can you a) telnet or b)
ssh into it?

Also, I have read that on a lot of the low-end ones, like Swann, port 9000
is completely open, but it's not clear to me from the hack post
<http://console-cowboys.blogspot.com/2013/01/swann-song-dvr-insecurity.html>
whether I could ssh in there, or rsync from a server through that port.

      mark