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As mentioned above, SYN attacks can be prevented by increasing the backlog queue. In addition, reducing timeout time also enables the system to process more SYN requests. We know that the timeout timeout, that is, the half-connection lifetime, is the sum of the timeout times that the system waits for all retransmissions. The larger this value, the longer the half-connection takes up the backlog queue and the fewer SYN requests the system can handle. In order to shorten the timeout time, it can be realized by shortening the retransmission timeout time (usually the first retransmission timeout time) and reducing the number of retransmissions.水晶镇上，魔术界有一个宝物名为圣水晶遭人偷盗，却没有成功。正在这时少年禹威随着母亲回到故乡水晶镇拜访爷爷奶奶，却不想出了车祸，禹威眼睁睁看着母亲被人拉走，却不能阻止就晕了过去。再次醒来的禹威竟然发现自己已经躺在了医院，而救自己的人是一个叫程茉莉的女生。救母心切的禹威拉着程茉莉再次回到车祸现场，却发现母亲车和车祸仿佛人间蒸发了一样，一点痕迹都没留下，就像是从来没有发生过车祸一样。禹威决定去求助未曾谋面的奶奶，于是带着程茉莉去水晶镇寻找奶奶涂芳，到了禹家程茉莉和禹威才发现禹家的房子无处不透诡异，房子里的家具一直在来回走动，两人害怕不已。两人终寻得涂芳，却发现涂芳已经变成了一个孩童心性的老人。PREROUTING, FORWARD, POSTROUTING1937年南京沦陷前夕，爱国学生楚香雪协同地下党男友吴兵设局刺杀汉奸，Thank you for sharing 111111111Actor:秦源对门外寒声道：带郑昊。