Network Security Foundation MASTER Class 2 2025

Welcome to the Network Security Foundation Master Class with Prabh Nair. In this session we stitch together every core building block of networking so you can design and defend real-world environments. You will see clear visuals on network scope, media, devices, topologies and performance metrics and learn how each choice changes the threat surface. WHAT YOU’LL LEARN • Seven OSI layers – purpose, common attacks, hardening tips • TCP ⁄ IP vs OSI – why both still matter in 2025 • IPv4 vs IPv6 – subnetting, CIDR, private ranges, NAT, SLAAC • MAC vs IP vs port – the “street address” logic of packets • Network topologies – bus, star, ring, mesh, hybrid risks • Key protocols – TCP, UDP, ICMP, ARP, DNS, HTTP ⁄ HTTPS, SMTP • How protocol addresses map to OSI layers for security logging • Real-world packet walk-through in Wireshark Part 1    • Network Security Foundation MASTER Class 2025   Network Security    • Network and Cybersecurity Interview Questi...   SOC Playlist    • Essential SOC Foundation Skills for Beginn...   CISO talks    • CISO Master Class   NIST Series    • NIST CSF - Identify Function ((Asset Manag...   GRC Series    • GRC Practical Approach - Part 1: Introduction   ISO 27001 Video    • Implementing ISO 27001 in an organization ...   ISO 27001 Implementation Guide    • ISO 27001 Like Never Seen Before: A Comple...   GRC Practical Series    • GRC Practical Series   GRC Interview    • GRC   Internal Audit    • Internal Audit   Study with Me Telegram Group https://t.me/Infoseclearning My Instagram   / prabhnair   My Spotify https://open.spotify.com/show/16M7QBK... #computernetworking #osimodel #protocol #cybersecuritycompany #cybersecuritycareers