Certified: The CompTIA Linux+ Audio Course

Jason Edwards
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Linux+ for People With Jobs is a practical, audio-first course that teaches you to think and work like a real Linux administrator—without burying you in theory or trivia. You’ll learn the commands, concepts, and workflows the exam expects, but more importantly, you’ll build the habits that keep systems stable in production: verifying assumptions, making safe changes, and troubleshooting with a calm, repeatable process. Every episode is designed to help you study efficiently, retain what matters, and walk into the exam with confidence that actually transfers to the job.

  1. EPISODE 1

    Episode 1 — How Linux+ (XK0-006) tests you: domains, PBQs, pacing

    Linux+ (XK0-006) evaluates whether you can translate concepts into admin decisions under time pressure, not whether you can recite trivia. This episode frames the exam as a set of domains that repeatedly test the same operational thinking: identify what the system is doing, confirm what “good” looks like, then apply the least-risk change that resolves the symptom. Performance-based questions (PBQs) are where that thinking is exposed because you must interpret outputs, choose commands, and sequence actions the way you would in a real terminal session. You’ll learn how to read a question for its intent, spot which domain it maps to, and avoid losing time chasing details that are not being tested.

    13 min

  2. EPISODE 2

    Episode 2 — Audio-only study method: recall loops, pause-and-answer drills, exam-day mindset

    This episode teaches an audio-first study system built for Linux+ outcomes: rapid recall, command intent recognition, and decision-making under constraints. Instead of passive listening, you’ll use recall loops that force retrieval—hear a concept, pause, explain it in your own words, then resume to validate and correct. This matters for the exam because questions often pivot on subtle differences (for example, what changes runtime vs persistent state, or which layer of the stack is failing), and those distinctions must be available instantly. You’ll also learn how to convert episode topics into “if you see X, think Y” associations that mirror real troubleshooting. Next, we operationalize that method with pause-and-answer drills and an exam-day mindset that reduces cognitive drift. You’ll practice turning prompts into short spoken responses: define the term, name the tool category, state the first verification command, and describe the safest fix. We cover how to use spaced repetition with audio by replaying only the segments you missed, not entire episodes, and how to build confidence without inflating it by “recognizing” content you can’t reproduce. Finally, we address exam-day performance: sleep, warm-up recall, and how to stay objective when a PBQ feels unfamiliar by anchoring on fundamentals instead of searching memory for a perfect match. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.

    13 min

  3. EPISODE 3

    Episode 3 — Boot flow story: bootloader → kernel → initrd/initramfs → userspace

    Linux+ expects you to understand the boot process as a sequence of responsibilities, where each stage hands off control to the next. This episode walks the boot flow as a story: firmware selects a boot device, the bootloader loads a kernel and an initial filesystem, the kernel initializes core drivers and memory management, and initrd/initramfs provides the early userspace needed to reach the real root filesystem. On exam questions, this mental model helps you locate failure points quickly: a bootloader problem looks different than a missing storage driver, and both look different than a service failing after userspace starts. You’ll focus on what each stage must accomplish for the next stage to succeed. Then we deepen the story with practical reasoning patterns you can apply in troubleshooting scenarios. You’ll learn what “early userspace” actually does—loading modules, assembling storage stacks, and preparing mounts—so you can interpret symptoms like a kernel panic, an inability to find the root device, or a drop to an emergency shell. We also cover what good triage looks like: observe the last successful stage, identify what changed (kernel, initramfs, disk layout, parameters), and choose a reversible action before attempting invasive edits. The outcome is a structured way to analyze boot issues even when the exact distribution tooling differs from what you normally use. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.

    14 min

  4. EPISODE 4

    Episode 4 — Boot configs and kernel parameters: what they change and why it breaks

    Kernel parameters and boot configuration are exam-relevant because they sit at the boundary between “system won’t start” and “system starts but behaves wrong.” This episode explains what boot configs control: which kernel boots, which initramfs is paired with it, which root filesystem is expected, and which runtime flags alter kernel behavior at the earliest moments. Linux+ questions often present a small set of parameters or boot stanza edits and ask you to infer the consequence, so the focus here is on intent. You’ll learn to categorize parameters as hardware/driver related, storage/root related, logging/verbosity related, or security/feature toggles, so you can predict impact without memorizing long lists.

    13 min

  5. EPISODE 5

    Episode 5 — PXE boot in plain English: where it fits and what can fail

    PXE boot is tested on Linux+ because it’s a clean example of network-based provisioning that relies on multiple services working in the right order. This episode explains PXE in plain English: a machine without a local OS asks the network for an IP address and boot instructions, downloads the bootloader or kernel artifacts, and then continues booting into an installer or live environment. On exam questions, the point is rarely to configure every detail from memory; it’s to understand the dependency chain so you can identify the missing link. You’ll learn how DHCP, boot files, and network reachability interact, and how to read symptoms as “can’t get an address,” “can’t find boot file,” or “download fails midstream.” Next, we apply that dependency chain to troubleshooting and operational best practices. You’ll practice isolating failures by verifying the earliest requirement first: link and VLAN correctness, then IP assignment, then the presence and accessibility of boot artifacts. We discuss common real-world issues that appear in exam scenarios, like conflicting DHCP responses, incorrect boot filename options, wrong architecture-specific boot file selection, and firewall rules that block needed traffic. You’ll also learn how to think about scale and reliability: why consistent addressing, clear segregation of provisioning networks, and artifact integrity checks matter when PXE becomes part of routine operations. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.

    14 min

  6. EPISODE 6

    Episode 6 — FHS tour: why where things live matters on exam questions

    The Filesystem Hierarchy Standard (FHS) shows up on Linux+ because “where” is often the clue to “what,” especially when questions compress a scenario into a few paths and log snippets. This episode teaches the FHS as a practical map of intent: binaries that run the system, configuration that defines behavior, variable data that changes during runtime, and user data that should be protected and backed up differently. You’ll connect common exam prompts to the right directories so you can reason quickly under time pressure, such as recognizing why a config change belongs in /etc rather than a random home directory, or why troubleshooting often starts with logs in /var. The goal is not memorizing every path, but learning the small set of high-frequency locations that drive most admin decisions. You’ll work through scenarios like “disk full” conditions caused by runaway logs under /var, services failing because a file in /etc is malformed, or software installs putting artifacts in unexpected locations that complicate upgrades and removals. We also address why FHS knowledge helps with permissions and security questions: putting secrets in the wrong directory changes who can read them, and mixing variable data into static locations creates drift that breaks predictability. Finally, you’ll learn a verification mindset: when you suspect a path, confirm ownership, permissions, and whether the data is meant to be persistent or regenerated, so you choose fixes that survive reboot and upgrades. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.

    13 min

  7. EPISODE 7

    Episode 7 — Distros and packages: RPM-based vs dpkg-based thinking

    Linux+ tests distribution awareness because real environments are mixed, and exam questions may describe commands, file locations, or package behaviors without naming the distro explicitly. This episode builds a clean mental model for RPM-based versus dpkg-based ecosystems as two families with similar outcomes: install software, manage dependencies, verify integrity, and keep systems patchable. You’ll focus on the “thinking layer” instead of command memorization: how packages are named, how dependencies are resolved, how repositories are enabled, and how you confirm what’s installed. Understanding these differences helps you interpret questions that hinge on whether a system uses rpm/yum/dnf style tooling or dpkg/apt style tooling, and it prevents you from applying the right idea with the wrong mechanism. Next, we expand into operational scenarios where package-family differences change troubleshooting. You’ll learn how to diagnose “package not found,” “dependency conflict,” and “held back” update behaviors by separating repository reachability from trust and metadata issues. We also cover verification habits that matter on the exam: confirming the owning package for a file, checking package versions, and validating whether a change came from a repo update versus a local manual install. Finally, we reinforce safe rollback thinking: what can be reversed cleanly, what leaves residue in config and state directories, and why documenting package changes is a reliability practice, not bureaucracy. The outcome is confidence switching between families without guessing, even when the question wording is intentionally minimal. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.

    14 min

  8. EPISODE 8

    Episode 8 — Architectures and GUI stack: x86_64 vs AArch64, X vs Wayland, licensing basics

    Architectures and desktop stacks are exam-relevant because they influence compatibility, performance expectations, and troubleshooting direction. This episode clarifies the difference between x86_64 and AArch64 in practical terms: instruction sets, common deployment contexts, and why binaries, kernel modules, and drivers must match the running architecture. Linux+ questions may present a mismatch symptom—an application won’t execute, a module won’t load, or a container image won’t run—and the underlying issue is often “wrong build for the platform.” We also set the stage for the GUI stack by distinguishing display servers, compositors, and session management, because exam scenarios sometimes frame a “desktop problem” that is actually a service, permission, or driver problem. we connect architecture and GUI concepts to decision-making you can reuse in both PBQs and real operations. You’ll practice recognizing when a problem is at the display protocol layer (X vs Wayland behavior), the driver layer (GPU acceleration, input devices), or the session/user layer (permissions, environment variables, startup scripts). We also cover licensing basics as exam-level awareness: what tends to be packaged separately, why some components require accepting terms or enabling specific repositories, and how that impacts supportability and updates. The point is to keep you from treating GUI issues as “mystery problems” by giving you a layered troubleshooting approach that starts with architecture compatibility, then moves to services and logs, and only then to configuration tweaks. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.

    14 min
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About

Linux+ for People With Jobs is a practical, audio-first course that teaches you to think and work like a real Linux administrator—without burying you in theory or trivia. You’ll learn the commands, concepts, and workflows the exam expects, but more importantly, you’ll build the habits that keep systems stable in production: verifying assumptions, making safe changes, and troubleshooting with a calm, repeatable process. Every episode is designed to help you study efficiently, retain what matters, and walk into the exam with confidence that actually transfers to the job.

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  • Creator
    Jason Edwards
  • Years Active
    2K
  • Episodes
    106
  • Rating
    Clean
  • Copyright
    © 2026 Bare Metal Cyber