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到了厨房，马婆子正在指挥下人将各样粽子装进礼盒，看样子是要拿去送人的。SYN attack is a kind of DOS attack. It takes advantage of TCP protocol defects and consumes CPU and memory resources by sending a large number of semi-connection requests. SYN attacks can not only affect hosts, but also harm network systems such as routers and firewalls. In fact, SYN attacks can be implemented as long as these systems turn on TCP services no matter what systems are targeted. As can be seen from the above figure, the server receives the connection request (syn=j), adds this information to the unconnected queue, and sends the request packet to the client (syn=k, ack=j+1), then enters the SYN_RECV state. When the server does not receive an acknowledgement packet from the client, it retransmits the request packet and does not delete this entry from the non-connection queue until the timeout. With IP spoofing, SYN attacks can achieve good results, Typically, clients forge a large number of non-existent IP addresses in a short period of time, SYN packets are continuously sent to the server, and the server replies to the confirmation packets and waits for the confirmation of the customer. Since the source address does not exist, the server needs to continuously resend until it timeout. These forged SYN packets will occupy the unconnected queue for a long time, normal SYN requests will be discarded, the target system will run slowly, and in serious cases, the network will be blocked or even the system will be paralyzed.这叫‘自作孽，不可活。20世纪80年代后期，狼牙侦察大队狙击手何卫东为救观察手范天雷，被外号“蝎子”的敌狙击手狙杀。何卫东四岁的儿子何晨光接过了父亲血染的79式狙击步枪瞄准镜。15年后，范天雷已是狼牙特战狙击手教官，他鼓励全国青少年级别的武术冠军何晨光、颇有打枪天赋的小混混王艳兵、朴实却有超常毅力的农村少年李二牛一起参军。《寻秦记》小说一出来。自十三世纪开始，倭寇为患中国，明朝嘉靖年间贻害最烈。权奸严嵩父子把持朝政，军队无能。日本九州藩招揽武士浪人，勾结海盗大举入侵，略地屠城；中华帝国面临着有史以来最严峻的海权挑战。戚继光生于将门之家，少年时期反叛不羁，屡屡闯祸，幸得严父和恩师循循善诱而成为文武全才；他娶得悍妻，反而养成他非凡的耐性；赴京考武举，结交了未来的贤相张居正，在政治纷争中共筹国家海洋战略；他知遇浙闽总督胡宗宪，助其完成中国第一部海防图集《筹海图编》；他携名将俞大猷、智囊徐文长，在腥风血雨间谱写传世兵法，创新武器，打破传统抗倭战术，锻造出戚家军，打赢了第一场荡平倭寇的民族战争，在刀光剑影中重铸中华脊梁。