Spyke

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No, you can't use your $6,299.00 Camera as a Webcam. That will be $5 – Roman Zipp

I found a way to use my old Nikon as a webcam using an HDMI capture card. Hooked it up to the camera's mini HDMI port and wham! had a working webcam!

But after thirty minutes, it would always switch off the live view, so i was left with a camera feed of the menus. Turns out this is an import restriction so it can be imported as a "still camera" and not a "movie camera" for significantly less taxes.

Enter some wonderful soul who found a way to hack the firmware to allow live view to stay on continuously, so now it works great as a webcam!

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How to configure UFW rules for podman

If you really want to stick to UFW, you can ignore me, but this looks like a situation where finding another firewall may be best. UFW is a front end for IPtables and is mostly meant for desktop or simple server app usage. I'd recommend Shorewall, which is also a front end for IPtables but implements a zone based firewall and allows for more complex setups to be handled easier than with UFW. You can put your podman containers into a zone and define all of the network access you need for that zone separate from the host system.