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Knowledge & reader activity

Practical guides for cloud computing, cybersecurity and system administration—with transparent measurements, not inflated reach claims.

What readers can use

39 public guides, with original publication dates spanning Nov 22, 2020 to Oct 2, 2026. Examples, diagrams, configuration steps and discussions support practical learning. Older guides reflect their published software versions; verify current documentation before production use.

Reusable practitioner resources

Try a checklist in an authorized test environment, record the result, and share a sanitized correction in the guide's reader discussion. These resources are available for use; availability and downloads are not proof of adoption.

  • Why websites ask “Are you human?” — a beginner explainer with three illustrations, a local ticket-check playground, and optional developer resources.
  • What is Group Policy? — a beginner explainer with three illustrations, a pretend-office playground, and an optional change-record worksheet. It is not a tested Windows lab.

Interactive learning, not just articles

The concept map connects eleven ideas. Scenario practice pairs eleven predictions with local experiments; the problem solver offers eight next-step checklists across four everyday problems. These counts describe available resources, not learners, completed lessons, or independently verified outcomes.

The Learning Lab has three original teaching experiments: a step-through website request, a saved-copy cache model, and real browser-local SHA-256 comparisons. The linked beginner guides add a pretend-office policy exercise and a human-check ticket exercise. Inputs are not submitted by these demos. These are learning resources, not diagnostic tools, tested production deployments, or claims of adoption.

Reading activity in the last 30 days

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Published guides39

Guides readers opened

All recorded article loads since measurement began; not unique people.

Measurement definitions and downloadable records

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Repeated loads from the same salted network identifier are deduplicated within 30-minute UTC buckets from October 2, 2026 UTC (a mixed-method transition day). Shared networks may be undercounted. Known crawler user agents are excluded; sophisticated bots can still be counted. JavaScript blocking can cause undercounting. Earlier counters used a non-deduplicated method and remain unchanged for historical integrity.

All-time recorded loads: —. Public comments currently visible: —.

These records do not establish unique readership, adoption, independently verified professional outcomes, or immigration eligibility. Dates are original publication dates, not claims that every guide is currently maintained.

Download the public article inventory (JSON)

Cloudflare delivery history (includes bots and requests)

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This is infrastructure activity, not evidence of human readership. HTML responses may include bots; requests include assets and APIs. Daily unique estimates must not be summed and described as unique people for the whole period.

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Publication record

Each guide below links to its full content and reader discussion. This inventory documents availability, subject coverage and original dates; it does not fabricate endorsements or outcomes. AI-assisted drafts are kept private until editorial review and publication.

Published (UTC)GuideTopic
2026-10-02Wi-Fi or internet? Find the slowest link in a downloadSystem Administration
2026-10-02Is sync a backup? Try restoring a pretend deleted fileSystem Administration
2026-10-02Read, edit, or admin? Permissions explained with a shared notebookCybersecurity
2026-10-02Why does MFA help when a password is stolen?Cybersecurity
2026-10-02What does HTTPS protect? A padlock is not a trust guaranteeCybersecurity
2026-10-02What does serverless mean? Somebody still runs the serversCloud Computing
2026-10-02Why is this page still old? Web caching explainedCloud Computing
2026-10-02What is DNS? Follow a website name to its addressCloud Computing
2026-10-02What is Group Policy? A tiny office explains itSystem Administration
2026-10-02Why websites ask “Are you human?”Cybersecurity
2023-04-01Passive Recon through ExifTool, Social Engineering and WiGLECybersecurity
2023-03-30Search Engine Indexing, SEO and Search TechniquesSystem Administration
2023-03-30Understanding Active Directory (AD) and Group PolicySystem Administration
2023-03-12Investigate a Compromised Exchange Server using SIEM and SysmonCybersecurity
2023-03-12Investigate Attack Patterns using SIEM, Sysmon Utility and MITRE ATT&CKCybersecurity
2023-03-10Investigate Cyber Attacks through OSINTCybersecurity
2023-03-10Configure Ubiquiti L2TP VPN and Split TunnelingSystem Administration
2023-02-26Using Threat Intelligence Tools to Investigate Cyber AttacksCybersecurity
2023-02-23Cryptography: Concepts and ExamplesCybersecurity
2023-02-20Vulnerability Management with Nmap and NetdiscoverCybersecurity
2023-02-13An Introduction to using Splunk for Malware AnalysisCybersecurity
2023-02-12An Overview of SIEM and Log ManagementCybersecurity
2023-02-06Threat Management: Concepts and ExamplesCybersecurity
2023-01-19The Diamond Model — A Methodology for Analyzing Cyber-AttacksCybersecurity
2022-08-10How to Protect and Encrypt Files using VeraCryptCybersecurity
2022-06-27How to Perform Network Speed Test with iPerf3System Administration
2022-03-06Configure Cloudflare Zero Trust for Web ApplicationsCybersecurity
2022-02-03VMware Tutorial: Install and Configure vCenter Server 7Cloud Computing
2022-01-29VMware Tutorial: Configure ESXi Host Management NetworkCloud Computing
2022-01-23VMware Tutorial: Install ESXi HypervisorCloud Computing
2021-12-27Common Linux Commands You Should KnowSystem Administration
2021-12-05AWS Basics: EC2 Instance TypesCloud Computing
2021-12-02Sysbench Tutorial: MySQL and I/O BenchmarkSystem Administration
2021-11-28How to Benchmark a Kerberos Web Server with JMeterSystem Administration
2021-11-27Cryptography Basics: Encryption and HashingCybersecurity
2021-03-07How to Transfer Files between Windows and LinuxSystem Administration
2021-01-05The Basics of Serverless and Microservice ArchitectureCloud Computing
2021-01-02Security Basics: Configure Cloudflare CDNCybersecurity
2020-11-22AWS Basics: Create and Connect to EC2 InstancesCloud Computing