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杨长帆立刻来了兴趣，凑到她旁边望向纸张，虽然只是几尺几寸的事情，放在未来就是几个阿拉伯数字而已，但在翘儿笔下，却记了足足两行繁体字，算上准备纸笔的时间，这阵仗搞得着实太大了，生活处处是磨砺，杨长帆又发现了一件自己做不到的事。Execute the first opt!SYN flooding attacks can attack with fewer packets than ordinary brute-force DoS attacks that only send a large number of packets to the target network. However, this requires some understanding of the server's operating system, such as how much backlog queue space it allocates and how long it will keep the TCB in the SYN-RECIEVED state before timeout and discarding the TCB. For example, an attacker can send a certain number of SYN packets that are exactly the size of the backlog queue, and their cycles are just the time when the TCB is recycled, thus making the server permanently unavailable.玉米哑口无言，因为他分析的很对。In our spare time, we will go deep into the grassroots to help farmers do farm work. We will really walk into farmers, understand their voices and their living conditions. At the same time, it is also a combination process of practice and knowledge, and it is our "second classroom".