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$ sudowheel

Linux articles, guides, and technical resources

sudowheel ~ welcome
$ cat /etc/motd
Welcome to sudowheel.com
Practical Linux knowledge. No fluff. No filler.
Written by people who understand Linux servers.
$ ls ./latest-articles/
systemd-guide.md iptables-deep-dive.md btrfs-snapshots.md selinux-policies.md
Latest Articles

Linux GPU Tiers: AMD, NVIDIA, and Intel Ranked for Driver Support in 2026

AMD RDNA 4, NVIDIA Blackwell, and Intel Arc Battlemage ranked by driver maturity, Wayland support, kernel requirements, and real install experience. Includes distro pairing guide and verified kernel minimums.

Linux Firmware Blobs: What They Are, Why They Exist, and How to Manage Them

What binary firmware blobs are, why the kernel needs them, how request_firmware() loads them, version mismatches, Secure Boot interactions, supply chain provenance via the WHENCE file, IMA integrity checking, GNU Linux-libre, and how to fix missing firmware on Debian, Ubuntu, Fedora, and Arch.

NVIDIA Linux Drivers: Open Modules, GSP Firmware, and the Road to Blackwell

Open kernel modules vs proprietary, how the GPU System Processor changed everything with Turing, what moved in the R560 and R590 driver series, Wayland DRM modeset, Blackwell-only open module support, Nouveau/NVK, and the Nova Rust driver entering the upstream kernel.

Linux GPU Drivers: NVIDIA, AMD, and Intel Explained

How the Linux DRM subsystem connects GPU hardware to userspace: NVIDIA's open kernel module, AMD's AMDGPU and RADV stack, Intel's Xe driver transition, Wayland explicit sync via linux-drm-syncobj-v1, and the NVK Mesa path for a fully open-source NVIDIA stack. Updated for kernel 6.11+ and the 2026 driver landscape.

20 Unique Things You Can Do in Linux That Will Change How You Think About Operating Systems

Twenty kernel-level capabilities -- /proc, strace, eBPF, namespaces, cgroups, live patching, capabilities, rr, auditd, perf, and more -- that expose how the Linux kernel works at a level no other mainstream OS allows.

Understanding the Linux Kernel Memory Model

Why your code can read stale values on one CPU while another CPU has already written the update -- and how the LKMM gives kernel developers a formal framework to reason about it, prevent it, and prove correctness.

Linux Kernel Tuning for High-Traffic Servers

Sysctl parameters, network stack tuning, and memory management settings that can dramatically improve throughput under load.