today's howtos

posted by Roy Schestowitz on Aug 08, 2026

• Frank Ch. Eigler: browsing custom metrics with pcp web applications

  Imagine you are someone who has played with performance co-pilot and its ?web applications. You've grown beyond the default dashboards, and want something more.

• OSTechNix ☛ How to Install OpenMetadata on Ubuntu 26.04 LTS with Docker Compose: Complete Step-by-Step Guide

  Learn how to install OpenMetadata on Ubuntu using Docker Compose. Deploy the complete stack with Airflow, PostgreSQL, and Elasticsearch.

• TecMint ☛ 20 Linux Networking Interview Questions and Answers for 2026

  I’ve put together 20 networking interview questions that are commonly asked for Linux System Administrator, DevOps, and technical support roles. The answers are written in a simple, natural way, just as you’d explain them in an interview. They’re short enough to answer in under a minute, while still giving you enough detail to confidently handle follow-up questions.

• Raspberry Pi ☛ Build a Raspberry Pi Pico route finder using Dijkstra's algorithm

  How does your satnav find your way home? How do networks decide which way to send data packets? How can a robot find its way around an obstacle? The answer to all these questions is by creating a graph of linked data nodes and then using something like Dijkstra’s algorithm to create routing data from the graph.

• Nick ☛ Adventures with DSL

  I’d expected this to be a long post, but it turns out, DSL is pretty simple (at least above the physical layer).

  I plugged in the DSLAM, loaded a line profile for VDSL onto the port and plugged an old modem/router I had in (I’d scavenged the cellular modem out of the router – that’s why it’s naked).

• Lea Verou ☛ Dark mode toggles: two states are enough

  Yes, the underlying model must have three states, but one is always irrelevant to the actual user goal. Users do not seek out solutions to problems they don’t currently have. A lot of the hate towards two-state toggles is based on poor implementations.

• Jonas Hietala ☛ Jonas Hietala: Domains, certificates, and DNS

  Accessing services via raw IP addresses isn’t that swell; I’m no Rain Man.

  It’s time to set up subdomains for my hietala.xyz domain for internal use. We’ll use the Gateway API to set up routes, cert-manager to give us https without self-signed browser warnings, and ExternalDNS to set up DNS overrides.

• Andy Bell ☛ Working with ::highlight() using progressive enhancement

  Highlighting in CSS has been beneficial for applying a highlight on specific text or text fragments during user selection, emphasizing a piece of information on a website, or visually emphasizing a text for the sake of branding. Particularly, this is pretty helpful when users want to scan your document from top to bottom because the majority of people don’t read your document initially; they scan.

• idroot

  • ID Root ☛ How To Install Jupyter Notebook on Fedora 44

  • ID Root ☛ How To Install WordPress on Ubuntu 26.04 LTS

    Installing WordPress on Ubuntu 26.04 is straightforward when the server is prepared correctly.

  • ID Root ☛ How To Install Fail2Ban on Fedora 44

• How to check your Ubuntu version (3 simple methods)

  Checking your system’s Ubuntu version is crucial to ensure compatibility before installing software or deploying an application. It also helps identify an outdated distro, which can present security risks.

  In this article, we will explain how to check your Ubuntu version using a graphical user interface (GUI), command-line interface (CLI), and Hostinger’s hPanel control panel. Since these methods suit different use cases, choose one based on your preferences.