South Korea’s military has been forced to remove over 1,300 surveillance cameras from its bases after learning that they could be used to transmit signals to China, South Korean news agency Yonhap reported.
The cameras, which were supplied by a South Korean company, “were found to be designed to be able to transmit recorded footage externally by connecting to a specific Chinese server,” the outlet reported an unnamed military official as saying.
Korean intelligence agencies discovered the cameras’ Chinese origins in July during an examination of military equipment, the outlet said.
Dual nic NVR then? You could even just throw a simple switch with no uplink (but preferably managed so you can tag the traffic) and for extra safety just allow only the LAN traffic you want on the NIC/Port connected to your regular LAN from the NVR.
Nothing wrong with a DIY can though! As long as it works of course
“NVR” in my case is just Zoneminder lol. I run it on a dedicated USFF PC and didn’t want to deal with multi-homing it or a USB ethernet adapter. When I upgrade it, yeah, I’ll probably get something with a dual NIC and go that route.
Right now, yeah, it’s all DIY since I scrapped those cameras years ago (neither held up well to UV after 6-7 months outdoors), so I’m less concerned about it with all of them being RPis now. The only thing I lack is PoE since I didn’t want to spring for the HATs.
Yeah all of my servers are on usff PC’s, so I get it.
If you do a hypervisor like proxmox, then throw your NVR in a VM, you can just create a couple of virtual NICs (though you’ll be back at that FW issue I’m sure).
USB NICs are pretty well supported these days though, and cheap to boot. Just need to be certain you’ve got usb3 if you want to make use of that gig though!
I’ve got a few pi-a-likes that I’m doing similar camera fun with, though using some webcams in there and a 3d printed case. At least that way they match my diy temp sensors with esp32s!