Here's my situation: I have a DVR which is capable of allowing me to remotely view my shop CCTV's over IP.However, I'm behind the ISP's NAT firwall and have no ability to open ports on the router, so I'm stuck to an IP range of 192.168.xxx.xxx For this reason, I cannot use this feature to remotely view my shop.
I'm now thinking of putting up a Linux machine connected with atleast 2 web cams, but really have no idea of how I can access them through this NAT firewall situation.
P2P?
Or in a scenario like this would reverse SSH tunneling help? I know I have setup reverse SSH tunnel for a headless linux server which I can manage remotely, but not sure if this can be a solution here.