All Episodes
Displaying 81 - 100 of 106 in total
Episode 81 — Functions and IFS/OFS: why scripts break on spaces and how to avoid it
Linux+ tests scripting reliability, and functions plus field separators are where many real-world scripts fail in subtle ways. This episode explains functions as reusa...
Episode 82 — Return codes and arguments: $?, positional params, error handling patterns
Linux+ expects you to treat commands as components with success and failure outcomes that must be handled deliberately. This episode explains return codes as the machi...
Episode 83 — Python for admins: venvs, dependencies, modules, data types, PEP 8 awareness
Linux+ includes Python for admins because many operational tasks benefit from structured scripting, dependency management, and working with data beyond simple text str...
Episode 84 — Daily Git workflow: init, clone, add, commit, log, diff, config, gitignore
Linux+ tests Git because modern operations relies on version-controlled configuration and code, and administrators must understand how changes are recorded and reviewe...
Episode 85 — Branching and merging: merge vs rebase, squash, conflict mindset
Branching and merging are tested on Linux+ because teams depend on controlled integration, and administrators must understand how history is shaped and how conflicts a...
Episode 86 — Recovery skills: reset vs stash, tags, safe undo thinking
Linux+ includes Git recovery skills because real operations involves mistakes, urgent reversals, and the need to return to a known-good state without making the situat...
Episode 87 — AI best practices for ops: safe use cases, verification, governance, prompt habits
Linux+ touches AI best practices because operators increasingly use AI to accelerate troubleshooting and documentation, and the exam’s security mindset applies to how ...
Episode 88 — Monitoring language: SLA vs SLI vs SLO and what healthy means
Linux+ includes monitoring concepts because administrators must describe and measure health in a way that supports decisions, not just collects metrics. This episode d...
Episode 89 — Data collection concepts: SNMP, traps, MIBs, agent vs agentless
Linux+ includes monitoring data collection because the value of monitoring depends on how metrics and events are gathered and how reliable that gathering is. This epis...
Episode 90 — Alerting design: thresholds, events, notifications, logging, aggregation patterns
Linux+ tests alerting design because good operations is not “more alerts,” it is the right alerts that drive the right actions at the right time. This episode explains...
Episode 91 — Boot failures: GRUB misconfig, kernel panic, and first-response triage
Linux+ treats boot failures as a high-value troubleshooting domain because the system is unusable until you can identify the failing stage and choose a safe recovery a...
Episode 92 — Corruption and weird crashes: kernel or data corruption, segmentation faults
Linux+ includes corruption and crash symptoms because administrators must recognize when behavior indicates deeper integrity problems rather than simple misconfigurati...
Episode 93 — Disk full puzzles: filesystem full vs inode exhaustion vs runaway logs
Linux+ frequently uses “disk full” as a puzzle because the same error message can come from different constraints, and the correct fix depends on which constraint is a...
Episode 94 — Mount and write failures: won’t mount, read-only, partition not writable
Linux+ tests mount and write failures because they are common operational incidents and they require you to distinguish between device issues, filesystem issues, and p...
Episode 95 — Package and dependency breakage: what fails, what to check first
Linux+ includes package and dependency breakage because software management is a common source of outages, and administrators must troubleshoot quickly without turning...
Episode 96 — System and service failures: systemd unit failures, PATH misconfig, missing drivers
Linux+ tests system and service failures because they represent the intersection of configuration, dependencies, and runtime reality. This episode frames three common ...
Episode 97 — DNS vs routing vs firewall: fast isolation with minimal commands
Linux+ often tests network failures by making multiple causes plausible, then rewarding the candidate who isolates the layer quickly. This episode teaches fast isolati...
Episode 98 — DHCP failures and IP conflicts: symptoms and best-next-step logic
Linux+ includes DHCP failures and IP conflicts because they are common causes of widespread “network is down” reports, and they require disciplined diagnosis. This epi...
Episode 99 — Interface issues: MTU mismatch, bonding, dual-stack surprises
Linux+ tests interface-level issues because they produce confusing symptoms that look like application failures until you recognize the network layer problem. This epi...
Episode 100 — Link problems: link down, negotiation failures, can’t ping server reasoning
Link-layer problems are on Linux+ because they are the first gate in network troubleshooting, and failures here can masquerade as routing, DNS, or application issues i...