Notes
Things worth writing down. The schedule is irregular; usefulness varies.
VM, LXC, or Docker container
The three are not rivals. One is a kernel boundary, one is a lightweight OS instance, one is a packaging format - and picking well means asking which problem you have.
A ping is not monitoring
A successful ICMP reply tells you almost nothing. What it took to turn 'the internet feels slow' into something you can watch and prove.
Self-hosting, described at role level
What my infrastructure does without saying where anything lives: two environments, five roles, and the boundaries between them.