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1930年，山东鲁南地区匪患猖獗，时任山东省主席韩复榘下令，调集重兵清乡剿匪。青年军官霍辰星在剿灭匪首王百川的战斗中，被同事陈营长出卖，导致众多兄弟伤亡，霍辰星在重重围困下，杀出血路，再重整军队，剿灭王百川。恋人山田由美在战地医院为霍辰星疗伤，两人甜蜜倾诉别离情。不然等人多了，到时候忙不过来。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.Sourceable obj = new Decorator (source);WeChat S60V3 version 4.0 is updated as follows:Let's start with the simplest hot spring egg. Hot spring egg is not actually Sous Vide, because it does not need to go through the vacuum sealing process, and its name also well explains its manufacturing method, that is, let the egg soak in a hot spring ~泰国one频道宣布将翻拍经典韩剧《对不起，我爱你》