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1948年腊月初一，潜伏在哈尔滨市公安局的国民党特务李春秋被唤醒了，上级要求他制造炸弹，协助配合绝密的“黑虎计划”。但潜伏了十年的李春秋已经快遗忘了自己的使命，拥有幸福平凡生活的他不愿抛妻弃子，他开始想尽办法逃脱保密局的控制。除了要对付残忍冷酷的昔日战友，李春秋还在受着同事、侦察科丁战国的怀疑和试探。内外交困的李春秋压力重重。在这个过程中，亲眼目睹了国民党腐败和血腥的种种细节，对曾经的组织绝望的李春秋弃暗投明，对中共进行了投诚。最终，在三十天后的大年初一，李春秋反戈一击，配合共产党破坏了国民党的“黑虎计划”，如愿与家人幸福团聚。去机场接朋友思缤的英珠，与从美国进修回来的小学同学——潇洒幽默、极俱才能的承振邂逅相遇，当承振想起小时候暗恋英珠的情景，暗地勾起了他对儿时美好回忆。此时，英珠已有了相处八年、本性善良的恋人——广播制作人东锡；承振也有一位外貌迷人、性格奔放的女友——美大毕业的摄影师美艳。而英珠、美艳、思缤恰恰是学生时代最要好的同窗。性格温和的东锡，由于受英珠的推托和母亲的阻挠，迟迟未能与英珠达成婚约。承振忆起小时残存的美好片断及父母离异带来的痛苦，觉得只有英珠考勤能唤回他美好的一切，于是……廉政公署新丁欧阳智与沈泳君，在资深调查员张嘉汶及韩奕山带领下，调查「教师向家长索取金钱」、「松手验车」及「高级食肆非法回佣」等棘手案件，逐渐独挡一面。及后山为自己前途计划，决定离职另谋发展。廉署突然收到举报前高官靳东尧免租入住豪宅的投诉信；执行处助理处长黄景新率同嘉汶、智、君深入调查，未料竟与任职律师的山对阵。此时，嘉汶因病被迫退下战线，智与君遂肩负起反贪重任，誓要打下香港廉政行动其中最重要一仗！偶像们心跳的歌声和有跃动感的舞蹈。站在舞台上的骄傲与喜悦洋溢着耀眼的笑容。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.回头白虎将军非找我算账不可。First click on the pink box of the subway ticket (see above), and then this interface will appear.