Networking & Security Fundamentals Articles

Networking Fundamentals for Cybersecurity Beginners: Complete Guide 2026

Learn networking fundamentals for cybersecurity from scratch. Understand OSI, TCP/IP, IP addressing, subnetting, ports, DNS, firewalls, Wireshark, SOC investigations and a practical 30-day lab roadmap.

By Sanjay Verma CISO | CISSP, CCSP, C|CISO | July 28, 2026 | Networking & Security Fundamentals | 26 min read