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Tutorials & write-ups

GuideNetworking Fundamentals for Cybersecurity

IP addressing, subnets, ports, TCP vs UDP, ARP, NAT and common protocols — the networking knowledge that underpins security analysis.

· Oct 27, 2026

GuideHow DNS Works and Why It Matters

The DNS lookup process, the main record types, caching and TTL, and the security issues defenders should know (spoofing, DNSSEC, tunnelling).

· Oct 27, 2026