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Your self-hosting, system administration, and all things digital infrastructure hub: tutorials, reviews, comparisons, news and more.
Read our latest blog posts below:
5/22/2026
How to Automate Linux Backups (and Actually Sleep at Night)
Losing data on a Linux server is painful, and it's almost always preventable. This guide walks you through setting up automatic Linux backups using tools like rsync, cron, and tar, so your data is protected without you having to think about it.
5/22/2026
What Is a CDN and How Do They Work?
A content delivery network (CDN) is a globally distributed system of servers that delivers web content to users faster by serving it from a location close to them. This article explains what CDNs are, how they work under the hood, and when you actually need one.
5/22/2026
What Is a Regional Internet Registry (RIR)?
Regional Internet Registries are the organizations responsible for allocating IP addresses and Autonomous System Numbers across the globe. Understanding how they work is useful for anyone managing infrastructure, requesting IP space, or thinking about internet routing.
5/22/2026
What Is GeoDNS? How Location-Based DNS Routing Works
GeoDNS lets you route users to the server closest to them based on their location, cutting latency and improving reliability. Here's how it works and when you should use it.
5/8/2026
How to Install and Use Git on Linux
Git is the standard version control system for developers and sysadmins alike, and getting it running on Linux takes just a few minutes. This guide walks you through installation, basic configuration, and the everyday commands you'll actually use.
5/8/2026
Understanding IPv4 and IPv6 Block Sizes
IP address blocks are the backbone of how networks are organized and routed across the internet, but the differences between IPv4 and IPv6 allocations can be confusing. This guide breaks down block sizes, CIDR notation, and what it all means in practice.
![Linux Market Share Statistics [March 2026 Report]](https://cache.xtom.com/5H96pqukJ98DYz76y5DdlNbcXvd-Nl-5MKoDssSJDQk/rs:fit:400:200:0/g:sm/aHR0cHM6Ly9jZG4ueHRvbS5jb20vMjAyNi8wNS8wOC92a3FyOS94dG9tLWxpbnV4LW1zLWZ0LndlYnA.webp)
5/8/2026
Linux Market Share Statistics [March 2026 Report]
Linux desktop market share is climbing fast, with fresh data from StatCounter, the Steam Hardware Survey, and Stack Overflow painting a clearer picture than ever. Here's what the numbers say halfway through 2026.
5/8/2026
What Is the Grep Command in Linux and How Do You Use It?
Grep is one of the most useful command-line tools in Linux, letting you search through files and output for exactly the text you're looking for. This guide covers what it does, how it works, and the most practical ways to use it.
3/31/2026
Introducing xTom’s RDAP client: a modern command-line tool for domain, IP, and ASN lookups
RDAP has taken over as the modern way to look up registration data for domains, IP ranges, and autonomous system numbers. xTom’s open source Rust client wraps that protocol in a fast CLI with readable output, smart query detection, and flexible JSON support. Learn more about it in this article.
3/27/2026
What Are GRE Tunnels and How Do They Work?
GRE tunnels encapsulate one packet inside another so traffic can move between remote systems or networks over an IP path. In this article, we'll explain more about them.
3/23/2026
What Is RAID and How Does It Protect Your Data? Plus Comparing All RAID Levels
RAID can improve uptime, performance, and fault tolerance, but it doesn't magically make data safe from every kind of loss. Here's what RAID actually does, how each RAID level works, and where ZFS, software RAID, and hardware RAID fit in.