Backing up / Imaging PiAware SD card remotely?

Hi guys,

With all the tweaks, updates and options we have with PiAware (mutability, FR24 feeders etc), I’m sure a lot of people will want to try these out, but dont want to risk “hosing” their current PiAware setup.
Being a PC-man, my knowledge of command-line Linux is limited.

So, if I wanted to make a complete image of my current PiAware SD card - that could just be rewritten to the SD if I trash the install - BUT do this over my (wired) network - Pi’s in the attic - what’s the best way of doing this?

THX