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Therefore, it is necessary to develop a detection system to make it difficult for attackers to optimize the payload. Here are three key design strategies to help achieve this.他们奉命隐藏在京城百里之外等候消息。见众人这样，秦淼难得地脸红了，害羞地低头道：这么冷的天，我们去哪呢？葫芦就微笑着跟家人打了招呼。ICMP is the Internet Control Message Protocol (Internet Control Message Protocol). It is a sub-protocol of TCP/IP protocol family and is used to transfer control messages between IP hosts and routers.The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be covered within the protection scope of the utility model.九十年代中期，李牛妞在高考前后，家庭发生了很大意外，命运出现转折。因家庭矛盾，李牛妞的三妹离家出走，造成了小弟瘫痪在床，压力过大的父亲在外出时不幸车祸去世，奶奶又病危住院。一系列灾难，使这个有着三个姓的七口之家的生活跌入低谷。这时，李牛妞毅然决定放弃学业，协助母亲撑起张家的天，既照顾瘫痪的小弟，又照顾长期患病的奶奶，一人担负起了整个家的责任。八年如一日，李牛妞的努力使小弟恢复健康并考上大学。宋超为报师恩，对张家无私奉献，与牛妞终成眷属。三妹桀骜不驯，又非常任性，给家庭带来诸多灾难，但牛妞仍然不离不弃，在三妹患白血病时为其捐献了骨髓，并最终感动三妹，使她认识到了亲情的重要性。李牛妞从开小饭馆到负责一个大型企业集团，自立自强，在亲人的帮助下，最终事业有成。