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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14 guides for “oom” in Tutorials · Clear search
Tutorials · 6 min read ·

How to Check and Free Up Disk Space on Linux

A full disk breaks databases, deploys and logins. Learn to find what's eating your space with df and du, and safely reclaim it — logs, caches and old kernels.

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 · 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 Immich (Photo Backup) on a VPS

Immich is the self-hosted Google Photos alternative with automatic phone backup and smart search. Install it on a VPS with Docker Compose.

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 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 Keep a Discord Bot Online with PM2

Use PM2 to keep your Node.js Discord bot running 24/7 on a VPS: auto-restart on crash, start on boot, log management, and zero-downtime restarts.

Tutorials · 4 min read ·

Best VPS for Python Projects

From a Flask API to a Django app or a data pipeline, here's how to choose a VPS that runs Python reliably in production — sizing, WSGI servers and deployment tips.

Tutorials · 4 min read ·

How to Run Staging and Production on One VPS

Host both a staging and production environment on a single VPS: separate directories, ports, subdomains, databases, and Nginx server blocks.

Tutorials · 3 min read ·

Linux swap and OOM tuning for small VPS plans

Out of memory? Learn how swap works, how to add a swap file, tune swappiness, and understand the OOM killer so your small VPS stays stable under pressure.

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