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There are two initial reasons:(1) Posts and wages are guaranteedSPEC SAGA 20周年纪念作品，SICK’S 《恕 霸 厩》三部曲之二。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.…,你嫌我碍着你的事了？话已经开了个头，那就没有什么不敢说的，田市继续说道：叔叔，你有把我当过齐王吗？在你面前我从来没有说话的分，甚至连个普通的臣子和将军都不如……你……田荣气愤不已，颤抖着喊道：我做这些还不是为了你。If citizens, legal persons and other organizations report or complain about the practice of fire-fighting technical service institutions and their employees, the fire-fighting institutions of the public security organs shall promptly check and deal with them.