Running your own VPN server used to mean wrestling with OpenVPN's certificate authority workflow or IPsec's famously fiddly configuration stanzas. WireGuard was built to sidestep both problems: it's a VPN protocol implemented as a small codebase that the Linux kernel has shipped as a built-in module since late 2019, …

Two decisions determine how a MariaDB install turns out on a fresh Ubuntu VPS: which repository the packages come from, and whether the post-install hardening script actually gets run. Skip either one and you end up with a database that's either years out of date or wide open by default. This guide covers both paths — …

Command-line clients like psql and the MySQL shell handle a quick query fine, but they start to strain once a Linux VPS admin is juggling more than one database engine, or wants to browse table structures and query history without re-learning another tool's dialect for every server. SQL Workbench/J exists for exactly …

A caching layer is one of those pieces of a VPS stack that people install once and stop thinking about — until the license under which it ships changes and suddenly matters again. That's exactly what happened with Redis, and it's why anyone provisioning a new Linux VPS for a session store, a queue backend, or a query …

A VPS with no monitoring installed only tells you about a problem after it has already become one — the process that has been leaking memory for six hours, the disk that filled up overnight, the CPU spike from a runaway cron job three days ago. Netdata closes that gap by collecting and charting server metrics every …

A stock Ubuntu install ships an ancient Docker package under a different name entirely — docker.io — if it ships one at all, and that package trails months or years behind what Docker actually maintains. The reliable path on a VPS is Docker's own apt repository, which tracks Docker Engine releases directly and gets you …

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 …

No space left on device. The error stops your application cold, and the first instinct — delete some logs and move on — usually misses what is actually wrong. A full disk on a VPS is rarely one obvious huge file; it is more often a directory you forgot about, a log that a process is still writing to after you "deleted" …

Every shared-root server has the same origin story. One person spins up the VPS, a second needs access so they get handed the root password, a contractor joins and gets it too, and within a year nobody can say who logged in last week or who still knows the password that protects everything. When something is deleted at …

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 …