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        <div><h1>Understand systems.<br><span>Build your defenses.</span></h1><p class="hero-intro">A clear, practical reference for learning cybersecurity. Explore practical guidance on operating systems, network security, and digital forensics.</p><div class="hero-actions">[[#topics|<span class="button primary">Explore the knowledge base <span aria-hidden="true">&#8594;</span></span>]][[Special:AllPages|<span class="text-link">Read an article &#8599;</span>]]</div></div>
<h1>Understand systems.<br /><span>Build your defenses.</span></h1>
        <div class="hero-art" role="img" aria-label="WikiCyber connects operating systems, network security, and digital forensics knowledge">
<p class="wc-intro">A clear, practical reference for learning cybersecurity. Explore operating systems, secure networks, and the evidence that tells their stories.</p>
          <div class="art-heading"><span class="wc-diagram-brand"></span><span>WikiCyber</span></div>
<div class="wc-actions">[[#wc-topics|<span class="wc-primary">Explore the knowledge base →</span>]] [[Special:AllPages|Browse articles ↗]]</div>
          <div class="art-core"><strong>Knowledge from systems to security.</strong></div><div class="art-connector"></div>
<div class="wc-values"><span>✓ Open knowledge</span><span>✓ Practical guidance</span><span>✓ Community contributions</span></div>
          <div class="art-branches"><div><div class="art-node"><span class="wc-diagram-icon wc-diagram-systems"></span>Operating systems</div></div><div><div class="art-node"><span class="wc-diagram-icon wc-diagram-network"></span>Network security</div></div><div><div class="art-node"><span class="wc-diagram-icon wc-diagram-forensics"></span>Digital forensics</div></div></div>
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<p class="wc-eyebrow">FIND YOUR STARTING POINT</p>
      <div class="knowledge-strip"><div class="knowledge-strip-inner"><strong>Find the knowledge you need.</strong><div>[[:Category:Windows|Windows]][[:Category:Linux|Linux]][[:Category:Cisco|Cisco &amp; networking]][[:Category:Windows Forensics|Digital forensics]]</div></div></div>
<h2>Explore by topic</h2>
      <div class="home-section" id="topics" aria-labelledby="topics-title"><div class="section-heading"><h2 id="topics-title">Build on a stronger<br>technical foundation.</h2></div>
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<div class="wc-card"><h3>[[:Category:Windows|Windows]]</h3><p>Accounts, policies, PowerShell, and the foundations of a secure Windows system.</p><div class="wc-card-link">[[:Category:Windows|Explore Windows →]]</div></div>
          <div class="topic-card"><span class="topic-icon blue" aria-hidden="true">&#8862;</span><h3>[[:Category:Windows|Windows]]</h3><p>Accounts, policies, PowerShell, and the foundations of a secure Windows system.</p>[[:Category:Windows|Explore Windows &#8594;]]</div>
<div class="wc-card"><h3>[[:Category:Linux|Linux]]</h3><p>Understand permissions, audit services, and get comfortable at the command line.</p><div class="wc-card-link">[[:Category:Linux|Explore Linux →]]</div></div>
          <div class="topic-card"><span class="topic-icon green" aria-hidden="true">&gt;_</span><h3>[[:Category:Linux|Linux]]</h3><p>Permissions, services, account auditing, and practical command-line guidance.</p>[[:Category:Linux|Explore Linux &#8594;]]</div>
<div class="wc-card"><h3>[[:Category:Cisco|Cisco &amp; networking]]</h3><p>Connect the concepts behind networks, from the OSI model to device security.</p><div class="wc-card-link">[[:Category:Cisco|Explore networking →]]</div></div>
          <div class="topic-card"><span class="topic-icon blue" aria-hidden="true">&#8984;</span><h3>[[:Category:Cisco|Cisco &amp; networking]]</h3><p>Networking concepts, routing, and the configuration behind secure connections.</p>[[:Category:Cisco|Explore networking &#8594;]]</div>
<div class="wc-card"><h3>[[:Category:Windows Forensics|Digital forensics]]</h3><p>Follow the evidence through event logs, system artifacts, and careful analysis.</p><div class="wc-card-link">[[:Category:Windows Forensics|Explore forensics →]]</div></div>
          <div class="topic-card"><span class="topic-icon green" aria-hidden="true">&#9678;</span><h3>[[:Category:Windows Forensics|Digital forensics]]</h3><p>Event logs, system artifacts, and methods for understanding what happened.</p>[[:Category:Windows Forensics|Explore forensics &#8594;]]</div>
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      <div class="enterprise-feature"><div class="enterprise-feature-inner"><div><h2>Follow the evidence.<br>Understand the system.</h2><p>Bring structure to an investigation. Start with context, preserve what matters, and compare the records that help explain an event.</p>[[:Category:Windows Forensics|<span class="text-link">Explore the forensics collection &#8594;</span>]]</div><div class="terminal"><div><span>linux &middot; investigation</span></div><pre><span># Establish a starting point</span>
<div><p class="wc-eyebrow">A CLOSER LOOK</p><h2>Start with the evidence.</h2><p>Explore forensic concepts and learn how system artifacts can help explain what happened.</p>[[:Category:Windows Forensics|Explore the forensics collection →]]</div>
<div class="wc-terminal"><div class="wc-terminal-label">linux</div><pre># Establish a starting point
$ journalctl --since today
$ journalctl --since today
$ last -a
$ last -a
$ ss -tulpn</pre></div></div></div>
$ ss -tulpn</pre></div>
      <div class="contribution-section" id="contribute"><h2>Contribute your experience.<br>Help improve the reference.</h2><div><p>WikiCyber is a free educational project. Invited contributors develop articles, and assigned reviewers review drafts before publication.</p>[[Help:Your first article|<span class="text-link">Writing your first article ?</span>]]</div></div>
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<div class="wc-contribute"><h2>Good knowledge grows together.</h2><p>WikiCyber articles are written by invited contributors and published through a review workflow.</p>[[Help:Your first article|Writing your first article →]]</div>
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Revision as of 20:14, 16 October 2026

Understand systems.
Build your defenses.

A clear, practical reference for learning cybersecurity. Explore operating systems, secure networks, and the evidence that tells their stories.

✓ Open knowledge✓ Practical guidance✓ Community contributions

FIND YOUR STARTING POINT

Explore by topic

Accounts, policies, PowerShell, and the foundations of a secure Windows system.

Understand permissions, audit services, and get comfortable at the command line.

Connect the concepts behind networks, from the OSI model to device security.

Follow the evidence through event logs, system artifacts, and careful analysis.

A CLOSER LOOK

Start with the evidence.

Explore forensic concepts and learn how system artifacts can help explain what happened.

Explore the forensics collection →
linux
# Establish a starting point
$ journalctl --since today
$ last -a
$ ss -tulpn

Good knowledge grows together.

WikiCyber articles are written by invited contributors and published through a review workflow.

Writing your first article →