On a systemd-based VPS the journal is not a plain text file you can tail and forget — it is a structured, indexed binary store managed by systemd-journald, and left at its defaults it will quietly grow until it claims a slice of your disk you never agreed to give it. That structure is a feature, not an annoyance: every …

Cron has scheduled Unix jobs for forty years and it still works, but on a systemd-based VPS it is no longer the only option — and for anything you need to operate rather than just fire-and-forget, systemd timers are the better tool. The difference is not nostalgia versus novelty; it is that a cron job is invisible …

Most services on a Linux VPS run with far more power than they need. A web app that only has to read its own files and listen on a port often runs able to write anywhere on the filesystem, see every other process's temp files, and acquire new privileges at will. If that service is ever compromised, all of that latent …