The journal.

Practical guides for choosing, building,
and running your infrastructure.

Featured guide

In this tutorial, we will show you how to create Django models to effectively manage and organize your data.

Python3 min read

Updated 17 Oct 2026 · Christian Wells

Read the guide

The library

Find your next guide.

21 articles Security · “server”

Debian

How to Set Up Fail2ban on Debian 11

Use Fail2ban to block malicious users on your Debian 11 server. This tutorial shows you how to set it up.

Updated 8 Dec 2022 · 1 min read

Explore the archive.

Browse practical guides by the problem you’re solving.

Linux

Setup, packages, and everyday administration.

Databases

Installation, tuning, and reliable backups.

Networking

Routing, DNS, and latency.

Performance

Understand workloads and benchmark results.

Security

Access, hardening, and safe defaults.

Operations

Deployments, monitoring, and maintenance.

From reading to real measurements.

Explore benchmarks