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At present, what methods do we take to solve the attack? The first method shortens the waiting time and deletes the illegal request data packets waiting in the waiting queue as soon as possible. The second method is that the first handshake message is not put into the waiting queue. We return a 32-bit unsigned integer to the client as the Seq of the second handshake. The integer is obtained by adding a serial number of the server to the parameters requested by the user (including the requested address, port, etc.). If it is a normal user, it adds 1 as ACK after receiving this integer and returns it to the server. After receiving the data, the server subtracts 1 from this ACK and then performs inverse operation to obtain various parameters. Finally, the data sent out are compared. If they are completely consistent, it means that it is an effective response and stored in the corresponding data structure, otherwise it is not. Through this method, illegal requests cannot occupy system resources.出去逛一圈，看看外头的世面，好过在家坐井观天。Batch Export延续前一集的剧情，狮子亚历克斯（本·斯蒂勒 Ben Stiller 配音）、斑马马蒂（克里斯·洛克 Chris Rock 配音）、长颈鹿迈尔曼（大卫·休默 David Schwimmer 配音）、河马格洛里亚（贾达·萍克·史密斯 Jada Pinkett Smith 配音）以及企鹅们，为了能离开马达加斯加岛回到五光十色的纽约，对一架破旧的失事飞机进行维修改造，并成功起飞。当大家已经开始庆祝终于可以回到纽约时，飞机却意外降落，迫降到了非洲大草原上。在这儿，狮子亚历克斯终于见到了它的父母。但是由于生活习性上太多不一样，而且言行举止各异，使得这群纽约来的动物们显得格格不入。这群昔日纽约中央公园的动物明星们，在这野外艰难的环境中应该怎么办？虽然在这儿遇见了自己的同类，但因为习性不同，使得自己无法完全融入他们的群体。为了能融入环境，与同类们建立良好的关系，大家都是施展各种招式，笑料百出。Introducing modules into Node.js: Everything you need to know is here.听媳妇骂郑家仗势欺人，他怒道：小娃儿哪一天不吵嘴，扯那些闲话干啥？咱家老鳖又不是没打过人。