The attacker first completes the three-way handshake to establish the connection, but in the last ACK reply of the three-way handshake, the TCP window size is set to 0, and then a data request is made. When the attack target sends the request result to the attacker, it stops the data transmission when it finds that the TCP window size is 0, and sends out a TCP window detection packet to ask the attacker if the TCP window has been updated. Since the attacker will not update the window size, the attack target will always maintain the TCP connection and wait for the data to be sent, and continuously carry out TCP window size detection. When the number of controlled hosts in the botnet is large, Target's connection table will gradually be exhausted, resulting in denial of service.
这是一个讲述因移植角膜而获得特异功能的少年与天才犯罪黑势力之间斗争的充满动感的悬疑片。主人公田中爱之助(山田凉介饰)是一位中学生,他患有先天性左眼弱视,接受了他唯一的亲人哥哥梦人(横山裕饰)的角膜进行了手术。手术非常成功,可从此之后,每当左眼受到刺激时,不知为何他总能看到一些神秘的映像。爱之助推断这些映像可能和哥哥的死有莫大关联,为了查明真相,他和学校的保健老师狭山瞳(石原里美饰)一起开始了搜查。但是为了阻止爱之助的行动,未知的犯罪分子开始了行动。
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