For the remote data thing -- I ran into this a few years ago on Fedora when I was spending a lot of time away from the house, and buying 5 GB at a time for wire

For the remote data thing -- I ran into this a few years ago on Fedora when I was spending a lot of time away from the house, and buying 5 GB at a time for wireless data. I eventually had to write a script to sound an alarm when data usage started increasing, and caught the culprit program in the act. Was one of the background Yum / DNF update processes. Ended up killing Packagekit, and problem went away.