Packet Analysis with tcpdump: Seeing What's on the Wire
·1651 words·8 mins
A practical guide to capturing and analyzing network traffic with tcpdump — filters, output formats, common patterns, and how to read packet dumps.
TCP
The OSI Model: Intermediate Concepts
·1473 words·7 mins
Deeper networking concepts mapped to OSI layers — packet captures, TCP internals, MTU issues, NAT, firewalls, and L4 vs L7 load balancing.