The meta-problem, you see: monitoring needs a server. But the server is what needs monitoring. (classic.) I have three VPS at three providers. If provider A hosts my monitoring, and provider A dies, I don't know B and C are fine because the monitoring died with A. (awkward.) semicolons. I know how to use them. Maybe too well. I've considered: phone-home scripts on each box. But they need somewhere to phone. External SaaS. But that's another dependency. (recursive, isn't it?) what I want: dead-simple, no-server-to-monitor-the-monitor, sms-me-when-smoke-detected. (preferably under $5/mo. I'm cheap.)
