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IT is the abbreviation of Information Technology, which means "information technology" and includes modern computer, network, communication and other information technologies. The widespread application of IT is a sign of entering the information society.According to statistics, SYN attack is the most common and easily used attack method among all hacker attacks. I believe many people still remember the attack on YAHOO website in 2000. At that time, hackers used simple and effective SYN attacks. Some network worms cooperated with SYN attacks to cause greater damage. This paper introduces the basic principle, tools and detection methods of SYN attack, and comprehensively discusses the prevention technology of SYN attack.这肉，也不知还能吃几回。In order to make good use of the principle of composite reuse, we first need to distinguish the relationship between "Has-A" and "Is-A".小葱觉得有理，忙叫了人来吩咐，派个小子送兰儿回秦家。该剧聚焦婚姻中女性的自我觉醒与成长，以及女性互助的力量，女性对自身处境的反思等热点议题。(1) Posts and wages are guaranteed