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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.　洛小熠无意中救下了一只名叫“阿迪”的宝贝龙，神奇的是阿迪身上没有星龙应具备的属性，但却似乎隐藏着一股被压制但又随时会爆发的可怕能量，正乎？邪乎？几乎同时，封印着世上最黑暗邪恶力量的星印罗盘突然降临龙武族，并有解封之势，龙武族顿时乱成一团，人心惶惶。传说星印罗盘一解封，人界和星龙界必将被黑暗势力吞噬！长老们立刻召集六位斗龙战士和众星龙商议对策，当务之急唯一的办法就是到黑暗古城找到星圣剑来对抗。随之，阿迪的神秘身份也被揭开……众人听了都笑。《天书红颜录》的生命力和潜力，绝对远超大家的想象。In addition, the structure of the mind map is divergent, which is very beneficial to the divergent thinking and creative thinking of the brain, and it is also easy to add new content. However, if new content is added in the middle of the two lines of text notes, the traditional linear notes will become dense, and even the lines will be introduced everywhere, which is neither good-looking nor conducive to summary.