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If an attacker sends SYN packets quickly with their own undisguised IP address, this is a so-called direct attack. This attack is very easy to implement because it does not involve spoofing or modifying packets below the user layer of the attacker's operating system. For example, he can simply send many TCP connection requests to implement this attack. However, for this attack to work, the attacker must also prevent his system from responding to SYN-ACK packets because of any ACK, RST, or ICMP (Internet? Control? Message? Protocol) will cause the server to skip the SYN-RECEIVED state (go to the next state) and remove the TCB (because the connection has been successfully established or recycled). Attackers can do this by setting firewall rules, causing the firewall to block all packets (except SYN) to reach the server, or causing the firewall to block all incoming packets so that SYN-ACK packets are discarded before reaching the local TCP handler.Basic Match Criteria:我那天真跟李敬德打架了，他也真骂我了哩。“想要变回原状的话，就通过‘某个方法’来产生联系，并把僵尸的尻子玉拿来吧”Keppi如此告知他们三人。少年们能否相互产生联系，并夺取僵尸的尻子玉呢？！与此同时，新星玲央和阿久津真武执勤的派出所，似乎也发生了什么。白河圭太（向井理）是一名在建筑检查公司工作的平凡建筑检查员，和妻子离婚后便和女儿两个人相依为命，现在和14岁的女儿维持着良好关系。然而，某天他却接到「你的女儿在我这，想留命就去找前妻」的恐吓电话。因而得知分手的妻子和女儿拥有秘密这回事。IT工程师丁人间（佟大为饰），剧中饰演尊崇个人奋斗敢爱敢恨的高级白领安清欢（陈乔恩饰），两人从不打不相识开始，经历无数插曲、误会，在嬉笑怒骂中把当下大时代中的代际冲突、价值观冲突、人生成败、何为真爱等话题进行了全景式展现。最终，小人物逆袭，高级白领放下身段 。