Search results

I don't know Zerotier, but Tailscale just works for any network topology (including CGNAT, v6-only and even UDP blocking).

Dahua and friends seem to quote the focal lengths for their fixed-lens cameras in roughly 1/2" equivalent focal lengths. So 2.8 mm is around 100-110° H FoV, 3.6 mm is around 80-90° H FoV etc. I guess that's because 1/2" CCDs were common in the analog days and so that became the reference point...

The "inch sensor sizes" are called optical format - they're the outside diameter of a vacuum image tube with a similar image area. Easy to imagine how that's not exactly a precise way to put things. So the exact size of a 1/3" sensor varies a little bit. Wikipedia has a list of some common...

Make it a totally separate network that doesn't have a gateway to the internet. Use either a separate VLAN (if you have a managed switch) or buy a separate dumb switch.