kde-redhat.org

Guides

Everything here follows the same rules: tested on a real system before publishing, versions and test date on every guide, expected output for every command, and a section for when things fail. SELinux and firewalld get handled the right way, never turned off.

• October 12, 2026 · C · certification & career

  RHCSA vs LPIC-1 vs LFCS vs Linux+: An Honest Comparison with Job-Market Data

  Exam format, cost, renewal period and job-posting data for RHCSA, LPIC-1, LFCS and CompTIA Linux+, checked against each vendor's own current pages.

• October 5, 2026 · Server · RHEL family

  Image Mode and bootc Hands-On: Build a RHEL-Compatible Server from a Container Image

  A bootc tutorial for image mode: build a CentOS Stream 10 or RHEL server from a Containerfile, boot it as a VM, then upgrade and roll it back.

• September 28, 2026 · B · KDE & Fedora desktop

  KDE Plasma 6 Themes That Actually Work in 2026

  Most “best KDE themes” lists point at abandoned Plasma 5 packages. Here is what actually installs and runs on Plasma 6.7 today, verified against upstream.

• September 21, 2026 · Server administration

  firewalld Zones Explained: Real Scenarios on RHEL 9 and 10

  How firewalld decides which zone handles a packet, plus the five zone layouts that actually show up on RHEL 9 and RHEL 10 servers. Commands with output.

• September 17, 2026 · C

  RHCSA Study Guide 2026: every EX200 objective, with the commands that prove it

  The official EX200 objective list for RHEL 10, one objective at a time, with the commands and expected output you need to prove each one in your own lab.

• September 10, 2026 · A · RHEL-family servers

  Still Running CentOS 7 in 2026? ELS vs Migration, Honestly Compared

  CentOS 7 hit end of life in June 2024. In 2026, ELS buys you patches, ELevate migrates you off for good. Here's how each one actually works.

• September 3, 2026 · B · KDE & Fedora desktop

  Fedora KDE vs Kubuntu: Which One Should You Actually Run in 2026

  Fedora KDE Plasma Edition vs Kubuntu 26.04 LTS compared: release cadence, Plasma freshness, Wayland, NVIDIA, and who should actually pick which in 2026.

• August 31, 2026 · A · RHEL-family servers

  dnf5 Migration Guide: What Breaks When You Move from dnf

  A dnf5 migration guide for RHEL, Rocky, and AlmaLinux 10: what breaks in scripts and modules, and how to test dnf5 safely before it's the default.

• August 24, 2026 · C · certification & career

  Is RHCSA Worth It in 2026? What the Job Data Actually Shows

  RHCSA salary and job claims checked against BLS wage data and Red Hat's own EX200 page, not recycled content-farm numbers.

• August 17, 2026 · A · RHEL-family servers

  Rocky Linux vs AlmaLinux in 2026: Which to Choose After the Divergence

  Rocky Linux vs AlmaLinux in 2026: what the 2023 source-access divergence actually changed, ABI vs bug-for-bug, governance, and which to pick.

• August 13, 2026 · B · KDE/Fedora desktop

  KDE Plasma on Wayland with NVIDIA in 2026: What Still Breaks and How to Fix It

  What still breaks running KDE Plasma Wayland with NVIDIA in 2026: VRR black screens, HDR errors, XWayland flicker, and real fixes.

• August 6, 2026 · A · RHEL-family servers

  How to Install Docker on AlmaLinux 10 and Rocky Linux 10

  Install Docker CE on AlmaLinux 10 or Rocky Linux 10 the right way: repo, packages, the kernel module fix RHEL 10 needs, and why SELinux stays on.

• August 3, 2026 · C · certification and career

  RHCSA Exam Changes 2026: What Actually Changed in EX200 for RHEL 10

  Red Hat's EX200 is now based on RHEL 10: containers are out, Flatpak and systemd timers are in, and RHCE means EX342 now. What is confirmed, what is not.

• July 27, 2026 · A · RHEL-family servers

  SELinux Troubleshooting: Fix AVC Denials Without Disabling SELinux (RHEL 9 and 10)

  Fix SELinux AVC denials on RHEL 9 and 10 the right way: find them with ausearch, explain them with audit2why, then relabel a file, set a boolean or add a port.

• July 24, 2026 · A · RHEL-family servers

  Initial Server Setup on AlmaLinux 10 and Rocky Linux 10: users, SSH keys, firewalld and SELinux

  A tested first-hour checklist for AlmaLinux 10 and Rocky Linux 10: sudo user, SSH key hardening, firewalld zones and SELinux kept on, with expected output.

• July 17, 2026 · B · KDE & Fedora desktop

  Fedora KDE Plasma Edition in 2026: a review from the project that kept KDE alive on Red Hat

  Fedora KDE Plasma Edition reviewed in 2026: what Edition status changed, what Plasma 6.6 brings, and the honest state of Wayland and NVIDIA.