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5. Anti CSRF TokenNo.54 Quan ZhixianTmall conducts lottery activities in Double 11 every year. For example, if Alibaba wants to improve people's use of Alipay to pay, if each user recharges 500 yuan to Alipay, then he can win 100% of the 100 yuan red envelope.Is it TCP to try to send enough SYN packets and run out of backlog? The purpose of SYN flooding. The attacker added the source IP address to the SYN packet, which would not cause the host to remove the assigned TCB from the SYN-RECEVIED state queue (because the host would respond to the SYN-ACK). Because TCP is reliable, the destination host will wait quite a long time before disconnecting the half-open connection and removing the TCB from the SYN-RECIEVED queue. During this period, the server will not be able to respond to legitimate new TCP connection requests from other applications. Figure 2 shows a simple TCP? The process of a SYN flooding attack.杭州百姓也皆已醒来，出门张望，只看到城东南的滚滚浓烟，一时之间人心惶惶，不明所以。　　本作品是以陈缘风为爸爸一角，记录女儿蓝蓝成长的点滴经历。温暖有爱的爸爸，在日常生活中经常会被女儿折腾的痛苦不已，但是爸爸经常会以一颗温暖的心去对待孩子制造的所有麻烦。而且爸爸还会经常带着女儿做出许多看似傻乎乎但其实充满人生哲理的蠢事，以此显示出真实而伟大的父爱。2. Use Migration Learning to Protect New Products