[aojdwhsd]

The only camera brand I have experience with is Axis Communications (very, very nice cameras, but very, very expensive too). There may be more options now, but back when I was playing with them I was able to configure the camera to record to a Samba share (instead of, or in addition to recording to an SD card).

[m-p-3]

I also have setup the server that grabs those recordings to sync with a VPS through Syncthing, along with an encryption key that the VPS doesn't know, so it only hosts an encrypted payload. If I need to retrieve the recording, I can simply add another host to the VPS and input the encryption key on the new host and it will grab everything decrypted.