Introduction

If you want to become a SOC Analyst (Security Operations Center Analyst), the very first step is to build a strong foundation in networking. Without understanding how networks work, it is almost impossible to detect attacks, analyze logs, or respond to incidents effectively. In this article, we will explore why networking is crucial for SOC Analysts and which core concepts you should master first.

Why Networking Matters for SOC Analysts

  1. Every attack flows through the network.
  2. Log analysis requires protocol knowledge.
  3. Incident response is network-centric.

Core Networking Concepts to Learn First

Here are the essential topics for every beginner SOC Analyst:

  • OSI & TCP/IP Models → Know how data travels across the layers.
  • IP Addressing & Subnetting → Understand how devices are identified and grouped.
  • DNS, DHCP, HTTP/HTTPS, FTP, SMTP → The protocols you will see daily in logs.
  • Routing & Switching Basics → How traffic moves between networks.
  • Ports & Protocols → Recognize what service is running (e.g., TCP 443 = HTTPS).

Real-World Example

Imagine you see unusual outbound traffic on port 53 (DNS).

  • A SOC Analyst with networking knowledge knows that DNS is normally used for resolving domain names.
  • But if traffic looks encrypted and large in volume, it might indicate DNS tunneling (a method attackers use to exfiltrate data). 👉 Without networking fundamentals, you would miss this red flag.

How to Start Learning Networking (Free & Paid Resources)

  • Free Resources:
    • Cisco Networking Basics
    • Professor Messer YouTube – Networking
    • TryHackMe – Intro to Networking
  • Paid Certifications (Optional but Valuable):
    • CompTIA Network+ (good beginner cert)
    • CCNA (Cisco Certified Network Associate) (industry recognized)

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Conclusion

Networking is not just a subject you “should know” — it is the core skill that separates an average SOC Analyst from an excellent one. If you want to build a strong career in cybersecurity, start with networking fundamentals today. 🔑 Remember: Every packet tells a story — your job as a SOC Analyst is to read it.

Written by orioninsist – documenting the SOC Analyst journey step by step.