无码人妻一区二区三区AV

营帐里，尹旭问道：此时英大哥怎么看？英布沉吟道：甭管他要什么都所谓，若真能如他所说，攻破铜山倒也不难。2. Distributed Denial of Service is divided into attack network bandwidth resources, attack system resources and attack application resourcesThe SYN-Flood attack is currently the most common DDoS attack on the network, It is also the most classic denial of service attack. It takes advantage of a defect in the implementation of TCP protocol. By sending a large number of attack messages with forged source addresses to the ports where the network service is located, it may cause the half-open connection queue in the target server to be full, thus preventing other legitimate users from accessing. This kind of attack was discovered as early as 1996, but it still shows great vitality. Many operating systems, even firewalls and routers, cannot effectively defend against this kind of attack, and it is very difficult to trace it because it can easily forge the source address. Its packet characteristics are usually that the source sends a large number of SYN packets and lacks the last handshake ACK reply of the three handshakes.精彩看点手指在和屏风上一点，哈哈笑道：就是此处。