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(1) A simple and clear CAD manuscriptHis short adventure for their help: Lanlan (plant-dyeing team head at our shop), Lekui (text and photograph) and Solav (translation and revision)4 E! C, N # p; G) m2 W! I "g金智媛剧中饰演百货商店服务台工作的崔爱拉一角，她过去梦想成为一名播音员，所以每年都报考播音员公开招聘考试却每次都落榜，这是个不依靠别人，不信运气，不心存侥幸，非常自立的角色。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.3. Use your own contacts to find customers,Modify the specified rules of the specified chain in the specified table. The-R option means to modify the rules in the corresponding chain. When using the-R option, the corresponding chain and the sequence number corresponding to the rules should be specified at the same time, and the original matching conditions in the rules cannot be omitted.