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SYN flood attack |
Also found in: Wikipedia | 0.07 sec. |
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An assault on a network that prevents a TCP/IP server from servicing other users. It is accomplished by not sending the final acknowledgment to the server's SYN-ACK response (SYNchronize-ACKnowledge) in the handshaking sequence, which causes the server to keep signaling until it eventually times out. The source address from the client is, of course, counterfeit. SYN flood attacks can either overload the server or cause it to crash. See denial of service attack. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Performing at 100 megabits per second, UnityOne-100E also includes Advanced Denial of Service Protection, which stops SYN floods and established connection floods, white blocking or throttling traffic that goes beyond what is defined as normal volume. SYN Flood or Denial of Service attacks can take down or at least render parts of a network useless during the attack. The policy-driven stateful firewall provides user-based Network Access Control (NAC) and protects against Denial of Service Attacks (DoS and DDoS), packet buffer exhaustion attacks, SYN flood attacks, and connection highjacking. |
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SYN flood
