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　　2006年，《快乐的大脚》横空出世，成为了当年动画People have studied SYN attack prevention technology earlier. To sum up, there are mainly two categories, one is through firewall, router and other filter gateway protection, the other is through strengthening TCP/IP protocol stack protection. However, it must be clear that SYN attacks cannot be completely prevented. What we have done is to reduce the harm of SYN attacks as much as possible unless TCP protocol is redesigned.A friend taught me a method that impressed me deeply. A cloud service provider promised that each host would protect attacks below 5G traffic, and they bought five at one go. The website is set up on one of the hosts, but it is not exposed to the users. The other hosts are mirrored and are used to face the users. DNS will evenly distribute the traffic to the four mirror servers. Once there is an attack, this architecture can prevent 20G of traffic. If there is a bigger attack, then buy more temporary hosts and continuously expand the image.一九四五年七月，抗战胜利前夕，新四军军需处干部林虹，潜伏在北冰洋贸易商行做助理，暗中筹措军需品。商行老板查福鼎是苏州名流，靠收买国民党上层军官发国难财，影响恶劣，军统启用高级特工周玖决定秘密抓捕查福鼎。After executing the command to add rules, look at the INPUT chain again and find that the rules have been successfully "appended" to the end of the INPUT chain. Now, the first rule indicates to discard all messages from 192.168. 1.146 and the second rule indicates to accept all messages from 192.168. 1.146. What is the result? Practice shows true knowledge. I used the ping command to send a message to the 156 host again on the 146 host, and found that the ping still failed. It seems that the second rule did not take effect.老米的妻子名叫吴琼花，琼花是位典型的中国普通母亲，为家人操碎了心，可这样一个热心肠的琼花，却一直没能当家，原因在于老米的丈母娘佟老太太是个充满生活智慧的老人，佟老太太在世一天，吴琼花就不可能成为一家之主。琼花的妹妹吴金花40岁了还没嫁人，老米和琼花的女儿米青、米蓝都30岁了仍待字闺中，这可愁坏了吴琼花。琼花四处想辄为家中“三朵花”寻求好的归宿。最终三朵花都收获了各自的幸福，琼花也从佟老太太手中接过了当家人的接力棒，全家人幸福地生活在一起。