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SYN flood

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Wukong Talks Architecture
Wukong Talks Architecture
Sep 30, 2021 · Fundamentals

Computer Network Fundamentals: OSI/TCP‑IP Layers, TCP/UDP Differences, Handshakes, and Related Mechanisms

This article provides a comprehensive overview of computer networking fundamentals, covering OSI and TCP/IP layer models, the functions of each layer, detailed comparisons between TCP and UDP, the three‑way handshake, four‑way termination, SYN‑flood attacks, congestion control, and practical mitigation techniques.

SYN floodTCPUDP
0 likes · 21 min read
Computer Network Fundamentals: OSI/TCP‑IP Layers, TCP/UDP Differences, Handshakes, and Related Mechanisms
Efficient Ops
Efficient Ops
Mar 1, 2020 · Fundamentals

Why Does TCP Need a Three‑Way Handshake? A Real‑World Analogy Explained

Using a quirky long-distance video-chat scenario, the article illustrates how TCP’s three-way handshake and four-way termination work, explains the purpose of each packet exchange, details TCP header fields, and even covers SYN-flood attacks, turning everyday communication glitches into networking fundamentals.

SYN floodTCPfour-way termination
0 likes · 10 min read
Why Does TCP Need a Three‑Way Handshake? A Real‑World Analogy Explained
Efficient Ops
Efficient Ops
May 13, 2018 · Operations

Diagnosing and Fixing TCP SYN Queue Overflows that Crash E‑commerce Sites

This article walks through a real‑world incident where an e‑commerce site suffered intermittent outages due to TCP SYN and accept queue overflows, explains the underlying handshake mechanics, shows how kernel and Nginx parameters can be tuned, and provides Python scripts for testing and SYN‑flood simulation.

LinuxNetwork TroubleshootingSYN flood
0 likes · 9 min read
Diagnosing and Fixing TCP SYN Queue Overflows that Crash E‑commerce Sites