Simple understanding of DDoS attacks

1, a traffic attack , mainly for the network bandwidth attack, that is, a large number of attack packets causing network bandwidth is blocked, legitimate network packets are buried by a false attack packet can not reach the host;

2, another resource exhaustion attack , mainly for the server host attack, that is, through a large number of attack packets caused the host's memory is exhausted or CPU by the kernel and the application to complete the network service is not available.

Reference: http://blog.csdn.net/bill_lee_sh_cn/article/details/6065704

Simple understanding of DDoS attacks