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等人都走了，镇国公夫人就沉默下来，仿佛不知如何开口。　　然而威廉他们很快发现，此次任务绝非如此简单，他们前行的路上充满凶险……虽然去的人不多，却只损失了四五个人。这个时代度数超低的米酒，对于喝惯白酒的尹旭来说，滋味实在一般。Is there any way to prevent such attacks? First, expand the broadband of the server; Secondly, choose TCP protocol as much as possible. Finally, some enlarged return packets are directly discarded.The SYN-ACK retransmission number server sends the SYN-ACK packet. If the customer confirmation packet is not received, the server retransmits for the first time, waits for a period of time but still does not receive the customer confirmation packet, and retransmits for the second time. If the retransmission number exceeds the maximum retransmission number specified by the system, the system deletes the connection information from the semi-connection queue. Note that the waiting time for each retransmission is not necessarily the same.