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In a SYN flooding denial of service attack, what resource is the attacker trying to exhaust? RAM? CPU?

Gilles 'SO- stop being evil'
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  • https://en.wikipedia.org/wiki/SYN_flood You need to know how TCP works to answer this question –  Dec 15 '17 at 00:27
  • Possible duplicate of [What is a DoS Attack and how does it differ from a DDoS attack?](https://security.stackexchange.com/questions/22809/what-is-a-dos-attack-and-how-does-it-differ-from-a-ddos-attack) See also: https://security.stackexchange.com/questions/4667/how-do-dos-ddos-work – Polynomial Dec 15 '17 at 00:51
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    Please do at least some research before posting questions. You don't even have to scroll down the [wikipedia article](https://en.wikipedia.org/wiki/SYN_flood) to get an answer. – Marc Dec 15 '17 at 00:52

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Depends...

  • it could be bandwidth saturation

  • exhausting of maximum number of supported half-open connection

  • service, OS or hardware limitation

  • etc.

Jan Pol
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