Blog
Your self-hosting, system administration, and all things digital infrastructure hub: tutorials, reviews, comparisons, news and more.
Read our latest blog posts below:
9/29/2026
Colocation Cabinet Sizing Guide: How Much Rack Space and Power Do You Actually Need?
Sizing a colocation cabinet means committing to rack space and power before you've finished filling it, whether it's your first cabinet or your fifth. Here's how to size both realistically, and what to check before you sign.
9/29/2026
What Is BGP Route Leak Detection, and How Do You Monitor for One?
A BGP route leak can silently reroute a meaningful share of internet traffic through the wrong network for hours before anyone notices. Here's what a route leak actually is, and how operators monitor for one.
9/29/2026
What Is DDoS Scrubbing, and How Does It Differ from Basic Rate Limiting?
Rate limiting can slow down a determined attacker, but it isn't built to handle a genuine volumetric DDoS attack. Here's what DDoS scrubbing actually does differently, and when a server needs it.
9/29/2026
What Is RPKI, and Why Are More Networks Requiring It from Their BGP Peers?
RPKI has gone from a nice-to-have to something more networks expect from their BGP peers. Here's what it actually does, how it works, and why it's becoming a baseline expectation rather than an edge case.
8/22/2026
Anycast Explained: How One IP Address Can Live in Multiple Places at Once
Anycast lets a single IP address be announced from many locations at once, routing users to the nearest one automatically. Here's how it actually works, where it's used, and what it takes to run it yourself.
8/22/2026
Docker vs. Podman: Which Container Engine Should You Use in 2026?
Docker built the container ecosystem, but Podman has become a serious daemonless alternative. Here's how they actually differ, with real commands, and which one fits your setup.
8/22/2026
How to Self-Host ntfy for Mobile Push Notifications
ntfy is a simple, open-source notification service you can run yourself. Here's how to self-host it, lock it down, and start sending push notifications straight to your phone from your own scripts and services.
8/22/2026
What Is SQLite, and When Is It Enough Instead of a Full Database Server?
SQLite runs as a single file with no server process at all, and it handles far more real-world workloads than people assume. Here's how it works, when it's genuinely enough, and how to migrate later if you outgrow it.
7/24/2026
Init vs. systemd: What's the Difference and Why It Matters
Every Linux system boots with the help of an init system, but the one running on your server today looks nothing like the one from a decade ago. Here's what actually separates traditional SysV init from systemd, and why it matters for how you manage services.
7/24/2026
Namespaces and Control Groups (cgroups): How Linux Isolation Works
Linux namespaces and cgroups are the two kernel features that make containers possible, one hides what a process can see, the other limits what it can use. Here's how they actually work under the hood.
7/24/2026
What Are the Different Types of Shells in Linux?
Bash isn't the only shell on Linux. Here's a breakdown of the most common shell types, sh, bash, dash, zsh, ksh, csh/tcsh, and fish, what each is actually built for, and how to check or switch which one you're running.