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Network Security tutorials

Design, segment, and monitor secure networks

Learn how data moves across networks, how firewalls and VPNs protect traffic, and how to analyze packets and detect anomalies—skills used in IT, cloud, and SOC roles.

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Best place to start

Computer Networking for Pentesters

Networking fundamentals tailored for security testing and infrastructure reviews.

Beginner – Intermediate3–6 hours
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Curated tutorials

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Topic areas

How it works

Learn → practice → test → apply

Every tutorial in this category follows the same practical structure so you build real skills, not just theory.

1

Read & understand

Concepts with examples and diagrams

2

Practice

Labs, commands, and scenarios

3

Test yourself

Quizzes and assignments

4

Apply on the job

Checklists and real-world workflows

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Curated tutorials in this category

Hand-picked programs to begin with — each includes chapters, practice, and assessments where available.

Featured

Computer Networking for Pentesters

Networking fundamentals tailored for security testing and infrastructure reviews.

Beginner – Intermediate3–6 hours

Includes: Protocols · Diagrams · Security lens

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Network Security Basics: Segmentation, VPNs, NAT, ACLs and Monitoring

Practical network security architecture with labs and diagrams.

Intermediate6–8 hours

Includes: Diagrams · Labs · Monitoring intro

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More topics

Explore other tutorial categories

Jump between fundamentals, offensive security, blue team, cloud, compliance, and more.

Cybersecurity Fundamentals

Build your security foundation from zero

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Ethical Hacking

Learn responsible offensive security workflows

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Web Application Security

Attack and defend modern web applications

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Linux Security

Harden Linux systems for production and audits

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SOC & Blue Team

Operate in the SOC: logs, alerts, and response

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Incident Response

Respond to incidents with structure and evidence

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Cloud Security

Secure cloud workloads, IAM, and logging

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DevSecOps

Embed security in CI/CD and cloud-native delivery

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Compliance & GRC

Frameworks, controls, and audit-ready evidence

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Cryptography

Cryptography concepts for security professionals

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Security Tools

Use security tools effectively and responsibly

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Outcomes

What you'll gain

  • Explain segmentation, NAT, ACLs, and VPN security trade-offs
  • Configure and reason about firewall policies
  • Use packet analysis for troubleshooting and detection
  • Connect network concepts to cloud and SOC monitoring tutorials

Topics

Skills & topic areas

SegmentationFirewallsVPNsPacket analysis
Network Security BasicsFirewall Rules ExplainedVPN SecurityNetwork SegmentationPacket AnalysisIDS and IPS Basics

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Continue your learning path

Pair tutorials with structured roadmaps, hands-on labs, and related courses.

Career roadmap

Follow a structured path that connects tutorials to job-ready milestones.

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Practice labs

Apply what you learn in guided, hands-on lab scenarios.

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Full courses

Graduate to multi-week programs with modules, labs, and assessments.

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Ready to start learning?

Open the featured tutorial or browse the full catalog filtered for network security.

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