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请问您对即将播放的《天河魔剑录》电视剧有什么看法？记者开始在街上随机采访。Telecommunications116. X.X.102夏日的一天，红发女孩玛丽（杉咲花 配音）被送到阿姨夏洛特所在的乡间小屋度假。初来乍到，玛丽对周遭的一切还不那么适应，特别是调皮男孩彼得（神木隆之介 配音）有意和她对着干，令玛丽实在高兴不起来。偶然一次的林间探险，玛丽见到了传说中的魔法之花“夜间飞行”，还找到了一柄破扫帚。偏偏这把魔法扫帚载着玛丽飞上天空，来到了专门培养魔法师的恩德学园。在这个神奇的所在，玛丽受到曼布勒切克女士（天海佑希 配音）的殷勤接待，还邂逅了怪模怪样的D博士（小日向文世 配音）。虽然女孩懵懵懂懂成为了魔法学员，可是他很快发现了这里所隐藏的秘密……我猜你先前怕是在洞里吓了一场，才做那个怪梦的。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.众人都点头道有理。