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The SYN-Flood attack is currently the most common DDoS attack on the 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. This kind of attack was discovered as early as 1996, but it still shows great vitality. Many operating systems, even firewalls and routers, cannot effectively defend against this kind of attack, and it is very difficult to trace it because it can easily forge the source address. Its packet characteristics are usually that the source sends a large number of SYN packets and lacks the last handshake ACK reply of the three handshakes.} catch (ClassNotFoundException e) {　　电视剧以宫城县牡鹿半岛一家临海意大利菜餐厅主厨为主角，讲述了东日本大震灾10年后当地的经济复苏及幸存者们的内心重建群像戏。讲述了游戏公司总裁章峥岚（姜潮饰）在机缘巧合之下认识并倾心于剑道教练萧水光（李溪芮），便使出十八班耍赖功夫抓住各种可乘之机接近自己心中的“缪斯女神”，并用默默守护的方式帮助内心受到过情感创伤的萧水光走出阴影，重新拥抱爱情的故事。实际上，吉田拥有关于加治的“某些秘密”，而这个秘密将极大地影响加德的命运……？Love your greed love your stubbornness怎么？亚父要紧吗？项羽心中顿时生出一种不好的预感，大夫吞吞吐吐的表情更加印证了猜想，于是停住脚步追问。