All Episodes
Displaying 21 - 40 of 106 in total
Episode 21 — Capacity vs inodes: disk full when it isn’t, and the mental checklist
Linux+ frequently tests “disk full” scenarios because the correct answer depends on what is actually exhausted. This episode explains capacity versus inodes as two sep...
Episode 22 — Network troubleshooting workflow: link → IP → route → DNS → service bind
Linux+ network questions are easier when you use a consistent workflow that prevents you from skipping layers. This episode teaches the link → IP → route → DNS → servi...
Episode 23 — Name resolution internals: hosts, resolv.conf, nsswitch.conf, failure modes
Name resolution is a high-yield Linux+ topic because many “network outages” are actually identity lookups failing at the client. This episode explains name resolution ...
Episode 24 — Network tools by intent: test connectivity, inspect sockets, capture packets
Linux+ does not reward knowing every flag; it rewards knowing which tool to pick based on the question’s intent. This episode organizes network tools into three roles:...
Episode 25 — Interface configuration concepts: NetworkManager vs Netplan, what changes where
Linux+ includes interface configuration because different distros manage network settings differently, and mistakes often persist across reboot in ways that confuse tr...
Episode 26 — Shell environment essentials: PATH, HOME, PS1, and startup files
Linux+ tests shell environment knowledge because many “command not found” and “works for one user but not another” scenarios are really environment problems. This epis...
Episode 27 — Redirection and pipes: how data flows through stdin, stdout, stderr
Redirection and pipelines are core Linux+ skills because they show whether you can control data flow rather than manually copy outputs. This episode explains stdin, st...
Episode 28 — Text processing decision drill: grep, awk, sed, sort, uniq, cut, xargs in context
Linux+ expects you to choose the right text tool quickly, because administration is often “read a file, extract signals, transform output, feed a command.” This episod...
Episode 29 — Backups without labs: archive vs sync vs image, restore validation thinking
Linux+ tests backup concepts because administrators are expected to protect systems even when tooling varies across environments. This episode explains three backup ca...
Episode 30 — Virtualization basics: KVM/QEMU, VirtIO, and where performance comes from
Virtualization is on Linux+ because it’s common in modern infrastructure and because performance and compatibility often hinge on a few core concepts. This episode int...
Episode 31 — VM storage and lifecycle: images, snapshots, migrations, and network modes
Linux+ covers VM storage and lifecycle because operating virtual machines responsibly requires understanding how state is stored, preserved, and moved. This episode ex...
Episode 32 — libvirt and virsh mental model: what these tools manage and how questions frame them
Linux+ expects you to recognize common virtualization management layers, and libvirt is a key abstraction that standardizes how VMs are defined and controlled. This ep...
Episode 33 — File operations you’re tested on: create, move, copy, remove safely
Linux+ tests file operations because they are the foundation of administration and because small mistakes can cause real outages. This episode focuses on safe creation...
Episode 34 — Finding things fast: locate vs find, and which tool fits decisions
Linux+ questions often compress a troubleshooting scenario into “you need to identify the file quickly,” and the correct tool depends on speed versus accuracy. This ep...
Episode 35 — Links and metadata: hard vs symbolic, stat thinking, and why it matters
Links are a Linux+ staple because they reveal how Linux represents files and how administrators can design flexible paths without duplicating data. This episode explai...
Episode 36 — Users, groups, and identity: UID, GID, EUID, EGID explained simply
Linux+ tests identity concepts because permissions, auditing, and service behavior all depend on which identity the system believes is acting. This episode explains UI...
Episode 37 — Account lifecycle: add, modify, delete, shells, and least-privilege habits
Account lifecycle management appears on Linux+ because administrators must create access cleanly, adjust it safely, and retire it without leaving security debt behind....
Episode 38 — Password aging and lockouts: expiration, chage concepts, and common gotchas
Linux+ includes password aging and lockout behavior because access control is not just “set a password,” it is policy enforcement over time. This episode explains expi...
Episode 39 — Reading process reality: ps/top/htop/proc and what to look for first
Processes are central to Linux+ because nearly every troubleshooting scenario eventually becomes “what is running, under what identity, consuming what resources, and w...
Episode 40 — Signals and job control: stop, continue, kill, foreground/background decisions
Linux+ tests signals and job control because administrators must manage running work safely, especially when a process is misbehaving but data integrity still matters....