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上古时代，为了应对大旱，中国古老的两个部落东夷和九黎} else {Software Firewall: Firewall that applies software processing logic to run on a common hardware platform with low performance and low cost.Round 2: 1-3,这时，卡基斯出现了，他对菲欧一见钟情。为了争夺菲欧的爱，卡基斯向罗森提出决斗。于是两人再次浴血蓝空。Pirce explained that this means that most enterprises will rely more on the support provided by service providers and management security service providers.Synflood attack is the most common DDoS attack on the current network, It is also the most classic denial of service attack. It takes advantage of a defect in the implementation of TCP protocol. By sending a large number of attack messages with forged source addresses to the ports where the network service is located, it may cause the half-open connection queue in the target server to be full, thus preventing other legitimate users from accessing.