The history of systemd, and why it won
What SysV init could not do, what Upstart and launchd tried first, why every distribution moved to systemd in four years, and which objections were right.
systemd
Keeping a service running across reboots and crashes. Units, timers, logs, and why a service that works by hand fails under systemd.
Filtering by topic #systemd · clear
dnf-automatic security updates on Rocky/Alma
Configure dnf-automatic on Rocky Linux and AlmaLinux: security-only mode, the systemd timer, email alerts, and a reboot policy that avoids surprises.
Podman vs Docker on a VPS: what really differs
Podman runs containers with no daemon and rootless by default. What that changes on a rented server: compose files, quadlets, ports and volume ownership.
Limit process memory and CPU with systemd
A capped process can still stall your whole VPS. Set MemoryHigh, MemoryMax, CPUQuota and TasksMax on a systemd unit, and read the OOM kill after.
Keep an Ollama model loaded in memory
Ollama unloads your model after 5 minutes idle, so the next request pays the full load time again. Set keep_alive so it sticks, even after a reboot.
Self-host Iva: a Telegram AI assistant
Run Iva, a self-hosted Telegram AI assistant, on a small VPS: no open ports, no domain, systemd user services and an Obsidian vault you back up.
How to choose a VPS for game servers
What a game server VPS really needs: fast single core speed and enough RAM. Sizing, ports, systemd restarts, backups, and why latency is about location.
Self-host KiroCrew on a VPS: always-on agent
Run KiroCrew as a pinned container on your own VPS so memory and schedules survive reboots. Docker, systemd, SSH access, backups and rollback.
Claude for sysadmins: everyday server jobs
Six server jobs Claude does well: reading a failed unit's logs, drafting systemd units, reviewing nginx and Compose files, plus what you must never paste.
Self-hosted stock research agent on a VPS
Build a self-hosted stock research agent on a VPS: a market data feed, a DuckDB store, a systemd timer that fires at market close, and an LLM screen.
Listmonk: self-host your newsletter on a VPS
Install Listmonk on Ubuntu 24.04 with Postgres, config.toml, a systemd unit and TLS, then connect SMTP and understand what deliverability really costs.
VPS for trading bots: what actually matters
What a trading bot really needs from a VPS: restart discipline under systemd, a correct clock, safe API keys, heartbeats, and honest latency limits.
Docker Compose: auto-start on boot
Make Docker Compose services come back after a reboot: restart policies, why on-failure does not survive one, and when a systemd unit is right.
Run MCP servers on a VPS for AI coding agents
Run Model Context Protocol servers on your own VPS so AI agents get real tools: stdio and remote HTTP transports, systemd, TLS, auth, and every failure mode.
Hermes Agent hosting: a $5 VPS is enough
Hermes needs no GPU: the model runs elsewhere, so a small VPS is plenty. Run it as its own user with ProtectSystem=strict in systemd, and cover IPv6 in UFW.
Install Fail2ban on Ubuntu 24.04: stop SSH bots
On Ubuntu 24.04 a plain apt install already bans SSH brute force. The fail2ban-client status sshd output proves it, plus the fix when Total failed stays at 0.
Run a program as a systemd service on a VPS
A systemd service keeps your program running: start on boot, restart on crash, log to the journal. How to write one, add a timer, and harden it.
Run OpenClaw safely on a VPS
OpenClaw runs shell commands and browses the web, so a careless setup is dangerous. Harden it on a VPS: unprivileged user, firewall, secrets, systemd.
Run services as an unprivileged user
Running a service as root turns one bug into full server access. Give each service its own unprivileged account, or let systemd do it with DynamicUser.
Install Certbot for nginx on Ubuntu 24.04
sudo apt install certbot python3-certbot-nginx, then one certbot --nginx run for a Let's Encrypt cert. Plus apt vs snap and the port 80 renewal timeout.
Self-host a WireGuard VPN on your VPS
Set up WireGuard on your own Linux VPS: key generation, wg0.conf, IP forwarding, NAT, AllowedIPs semantics, DNS, and the handshake failures that bite.