DDoSPedia

  • This glossary focuses on network and application security terms with many DDoS-related definitions, a "DDoS-pedia" – its goal is to provide a central place for hard to find web-scattered definitions on this topic.

     

  • DDoSpedia

    SYN-ACK Flood

    A SYN-ACK flood is an attack method that involves sending a target server spoofed SYN-ACK packet at a high rate. Because a server requires significant processing power to understand why it is receiving such packets out-of-order (not in accordance with the normal SYN, SYN-ACK, ACK TCP three-way handshake mechanism), it can become so busy handling the attack traffic, that it cannot handle legitimate traffic and hence the attackers achieve a denial-of-service condition.