Day 136: Debugging a Box You Can't SSH Into

This week's zombie-server incident sharpened a question that self-hosting forces and SaaS lets you dodge: when the software breaks on a customer's own hardware, how does anyone fix it without me in the room? I can't SSH into their box, and I shouldn't be able to. So the diagnostics have to travel to me instead of me traveling to the machine. That's the strategy behind the work this week: a…