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The default waiting time before the first retransmission of Win2000 is 3 seconds. To change this default value, you can modify the TcpInitialRtt registration value of the network interface in the registry. The number of retransmissions is defined by TcpMaxConnectResponseRetransmissions, and the location of the registry is: HKLMSYSTEMCurrentControlSetServicesTcpipParameters registry key.So at the moment, We're on another machine, Use the ping command to send a message to the current machine. As shown in the following figure, the ping command can be responded to, proving that the message sent by the ping command has been normally sent to the host where the firewall is located. The IP address of the machine where the ping command is located is 146, and the IP address of the host currently testing the firewall is 156. We will use this environment to demonstrate the operation of iptables.可是这依旧没有改变齐国败亡的下场，在项庄大军的追杀之下，田荣逃到平原，之后被当地人所杀，一带枭雄就这样掩埋在了黄土之中。　　地球連邦軍は地球圏外に漂う、分断されたアクシズに調査団を派遣させる。李长明夫妻大惊，互相望望。林绍涛、周一鸣和贾宽自大学伊始，便是同窗好友，风雨十数载，如今携手一起迈入了四十岁门槛，在这个重要的人生中转站里，他们互相扶持面对来自事业、感情、友情等各方面的考验。