The Nxeon Blog

Guides for people who run their own servers.

Straight-talking tutorials and comparisons on VPS hosting, game servers, Linux and security. No fluff, just what actually works. 346 guides from the team that runs the servers.

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31 guides for “memory” in Tutorials · Clear search
Tutorials · 6 min read ·

How to Set Up Health Checks and Auto-Restart for Services

Services crash. With systemd restart policies, watchdogs and simple health checks, yours come back automatically instead of staying down until you notice.

Tutorials · 5 min read ·

How to Tune Linux Performance for a Busy Server

When traffic climbs, defaults hold you back. Tune file limits, network buffers, sysctl parameters and services to squeeze more out of your VPS.

Tutorials · 5 min read ·

How to Read and Manage Linux Logs with journalctl

systemd's journal holds nearly every log on a modern Linux server. Learn to filter, follow, and prune it with journalctl so you can debug fast.

Tutorials · 5 min read ·

How to Monitor a Linux VPS (htop, netdata and more)

You can't fix what you can't see. Learn the essential Linux monitoring tools — from quick htop checks to a full netdata dashboard with alerts.

Tutorials · 5 min read ·

How to Create a Swap File on a Linux VPS

Small VPS plans run out of RAM fast. A swap file gives the kernel breathing room and prevents the OOM killer from killing your app. Here's how to add one.

Tutorials · 4 min read ·

How to Self-Host Grafana and Prometheus for Monitoring

The classic open-source monitoring stack. Install Prometheus and Grafana on a VPS with Docker, collect server metrics, and build dashboards that actually help.

Tutorials · 5 min read ·

How to Self-Host a Matrix/Synapse Chat Server

Own your chat with a Matrix Synapse homeserver. Install it on a VPS with Docker, wire up HTTPS and federation, and connect with the Element app.

Tutorials · 5 min read ·

How to Self-Host Uptime Kuma for Monitoring

A gorgeous, self-hosted uptime monitor. Install Uptime Kuma with Docker and get instant alerts when a site or service goes down.

Tutorials · 5 min read ·

How to Self-Host Nextcloud on a VPS

For anyone who wants Dropbox-style file sync without the subscription or the snooping: install Nextcloud on your own VPS with Docker Compose and HTTPS.

Tutorials · 4 min read ·

How to Run a Telegram Bot 24/7 on a VPS

Deploy a Telegram bot on a Linux VPS and keep it online 24/7: Python or Node, polling vs webhooks, a safe token, and a systemd service that auto-restarts.

Tutorials · 4 min read ·

How to Host a Discord Music Bot on a VPS

Run your own Discord music bot on a VPS: install ffmpeg and the voice dependencies, stream audio reliably, and keep it online 24/7 with PM2.

Tutorials · 4 min read ·

How to Host a Node.js (discord.js) Bot on a VPS

Deploy a discord.js bot on a VPS from scratch: install Node.js, structure the project, register slash commands, secure the token, and run it with PM2.

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