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Reason for Nomination: Through two undercover experiences and interviews with a large number of professionals, the reporter presented the background of the listing of China's crude oil futures from various angles, and interpreted the impact and future trend of crude oil after listing. The major event of "China's crude oil futures listing" has given the interface its own unique set of reports.7. The production space of the micro kitchen will give full play to the operating functional area of the store to a great extent and increase the ratio of floor efficiency.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.悲哀的童话能否找回快乐的结局？新一年的旅程，这些好朋友们又将经历怎样的冒险？1. At the beginning of Apple's establishment, it mainly developed and sold personal computers. As of 2014, it was committed to designing, developing and selling consumer electronics, computer software, online services and personal computers.和天启小说中的女性角色组成队友。本作是一部描写失去父母的三姐妹的日常生活的动画作品，乐趣在于本作出演的角色都是各位vtuber。