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which an attacker deliberately violates the three-way handshake and opens a large number of half-open TCP conn

SYN Flood is a DOS attack in which an attacker deliberately violates the three-way handshake and opens a large number of half-open TCP connections. The signature of attack for SYN Flood contains:

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A.
The source and destination address having the same value

B.
A large number of SYN packets appearing on a network without the corresponding reply packets

C.
The source and destination port numbers having the same value

D.
A large number of SYN packets appearing on a network with the corresponding reply packets

4 Comments on “which an attacker deliberately violates the three-way handshake and opens a large number of half-open TCP conn

  1. rednael says:

    Actually, the victim does reply with a SYN/ACK message, but then the attacker would not reply with a ACK or RST, leaving the ports on the victim machines half-open and waiting for a answer.


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