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Think about whether we can expand and draw inferences from other examples.影片通过记录主人公的童年、青少年时期、婚姻生活和为人父母的生活经历，成功刻画了李小龙站在时代前沿的雄心壮志，同时展现出了他在钻研截拳道过程中形成的哲学基础，以及他个人混合武术的流派风格。北宋真宗年间，翰轩书院院正千金秦香莲因国色天香、才艺双全名震均州城。官宦商贾纷纷上门提亲，秦父却一心要让女儿嫁作王妃。当朝太师之子庞虎逼婚，秦香莲不慎落水，顺江而下被书生陈世美所救。《天使的微笑》是一部充满了正能量的励志片，是中国首部全景式展现医疗护理人员生活事业和感情的长篇电视连续剧，剧情跌宕起伏，定位更加青春。青年演员戚迹扮演的急诊科医生康健，有着不服输的精神，有种向上的力量，但由于过去的遭遇，性格上有点激进，是个亦正亦邪的人物。外形上的绝对优势，让戚迹成为小护士们暗恋的对象，是医院里当之无愧的人气王。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.