How does SYN Flood work and how to prevent it?

by | Mar 27, 2020 | CCNA, CCNP, CompTIA, DoS and DDoS Prevention, Exclusive Articles, Featured, Most Common Vulnerabilities, Network Security, Security Fundamentals

SYN Flood

What is the SYN Flood?

SYN Flood is a type of Denial of Service (DoS) attack in which attackers send a large number of SYN requests to a system and create a huge number of half-open connections. These requests consume lots of server resources such that after some time the server becomes unable to accept legitimate connection requests.

How does SYN Flood work? And, how can we prevent it? In this article, we would discuss that in detail.


In this article, we will discuss:

  • What is the SYN Flood?

  • How is a TCP Connection established?

  • How does the SYN Flood attack work?

  • How to prevent the SYN Flood attack?

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Amrita Mitra

Author

Ms. Amrita Mitra is an author, who has authored the books “Cryptography And Public Key Infrastructure“, “Web Application Vulnerabilities And Prevention“, “A Guide To Cyber Security” and “Phishing: Detection, Analysis And Prevention“. She is also the founder of Asigosec Technologies, the company that owns The Security Buddy.

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