All Episodes
Displaying 61 - 80 of 106 in total
Episode 61 — NAT and forwarding: DNAT, SNAT, PAT, ip_forward, troubleshooting frames
Linux+ tests NAT and forwarding because they are foundational to making Linux act as a router, gateway, or service exposure point, and misunderstandings create hard-to...
Episode 62 — Sudo and privilege: sudoers structure, safe delegation, common misconfig patterns
Sudo is a high-yield Linux+ topic because it represents controlled privilege delegation, and many security failures are caused by sloppy sudoers design. This episode e...
Episode 63 — Permissions and control: chmod, chown, special bits, umask, ACLs, file attributes
Linux+ tests permissions because they are the day-to-day control plane of a Linux system, and subtle distinctions determine whether access is secure or broken. This ep...
Episode 64 — SELinux and secure access: contexts, booleans, plus SSHD hardening and fail2ban themes
Linux+ includes SELinux because it adds mandatory access controls that can block actions even when traditional permissions look correct, and the exam expects you to re...
Episode 65 — Password policies and lockouts: complexity, history, pam_tally2 concepts
Password policy and lockout controls show up on Linux+ because they tie together authentication strength and operational resilience. This episode explains complexity r...
Episode 66 — Safer accounts: restricted shells, avoiding root habits, practical guardrails
Linux+ tests account hardening because real security posture is often decided by everyday habits: who logs in, what they can run, and how privilege is handled. This ep...
Episode 67 — Data at rest: GPG vs LUKS2, keys, and what good enough means
Linux+ includes data-at-rest protection because administrators must understand where encryption is applied and what is actually being protected. This episode compares ...
Episode 68 — Data in transit and certs: TLS stacks, WireGuard basics, hashing, weak algorithms
Linux+ tests data-in-transit protections because secure connectivity depends on understanding encryption, identity, and integrity in practical operational terms. This ...
Episode 69 — Vulnerability and standards thinking: CVE/CVSS, OpenSCAP, CIS Benchmarks
Linux+ includes vulnerability and standards thinking because administrators must connect technical findings to risk decisions and repeatable hardening baselines. This ...
Episode 70 — Integrity and destruction: AIDE, rkhunter, verification, secure erase, supply chain, banners
Linux+ tests integrity and secure destruction because security is not only about preventing access, but also about proving trust and eliminating data safely when requi...
Episode 71 — IaC overview: what problems it solves and how exams describe it
Linux+ includes Infrastructure as Code (IaC) because modern operations depends on repeatability, traceability, and the ability to rebuild systems reliably under change...
Episode 72 — Ansible at exam depth: inventories, playbooks, modules, ad hoc, facts, agentless
Linux+ tests Ansible concepts because it represents a common, practical approach to configuration management and automation in Linux environments. This episode explain...
Episode 73 — Puppet at exam depth: classes, modules, facts, certificates, agent vs agentless
Linux+ covers Puppet concepts because configuration management is a core enterprise skill, and the exam expects you to recognize how agent-based systems differ from ag...
Episode 74 — OpenTofu and Terraform concepts: providers, resources, state, drift, APIs
Linux+ includes Terraform-style concepts because declarative provisioning has become a standard pattern, and the exam emphasizes the mental model more than brand-speci...
Episode 75 — CI/CD and GitOps: pipelines, shift-left testing, DevSecOps vocabulary
Linux+ tests CI/CD and GitOps vocabulary because modern Linux administration often happens through pipelines, not through manual terminal changes, and the exam expects...
Episode 76 — Orchestration overview: Kubernetes objects plus Swarm and Compose mental models
Linux+ includes orchestration because modern workloads often run as distributed containers, and administrators must understand how desired state is defined and maintai...
Episode 77 — Bash script structure: shebang, execution, safety defaults, readability
Linux+ tests Bash scripting because automation is a core Linux skill, and the exam expects you to write or reason about scripts that behave predictably. This episode e...
Episode 78 — Expansion and substitution: variables, quoting, subshells, command substitution
Expansion rules are high-yield on Linux+ because many scripting and command-line failures come from misunderstanding how the shell transforms text before a command run...
Episode 79 — Conditionals: if, case, string vs numeric comparisons, common test flags
Linux+ tests conditionals because automation depends on making correct decisions with correct comparisons, and the exam often uses subtle differences to see if you und...
Episode 80 — Loops: for, while, until with real admin-style use cases
Loops are a Linux+ staple because they represent scalable administration: you apply a consistent operation to many files, users, hosts, or checks without manual repeti...