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Since http is based on tcp, You need to complete a three-way handshake to establish a tcp connection before you can start http communication, Therefore, when http flood attacks are carried out, it is not possible to use forged source ip addresses to launch attacks. An attacker will typically use an http proxy server, Not only can the source be hidden from being traced, It also improves attack efficiency-after the attacker connects to the proxy server and sends the request, You can directly disconnect from the proxy server and start connecting to the next proxy server, At this time, the http connection between the proxy server and the target web server is still maintained, and the web server needs to continue to accept and process data. An efficient http flood attack should continuously send http requests for different resources and pages, and request resources that cannot be cached as much as possible (such as keyword search. User-related information, etc.)0 Registers a delegate instance for the event through the constructor of the DoSth delegate　　CW又一次一口气续订多剧，这次共13部，包括《吸血鬼后裔 Legacies》（S3）。该剧用气势恢宏的篇幅讲述了大宋王朝的缔造者赵匡胤传奇的一生，用独特的视角展现一段波澜壮阔的历史故事。现代都市女田心与姐姐田妮经营网络服装店，生意兴隆。因大龄未嫁，田心被田妮推上相亲节目，与婚纱企业继承人周天齐不打不相识，并最终步入婚姻殿堂。无奈婚后生活磕磕绊绊不断，田心意外流产，天齐旧爱方彤趁机介入，误会重重之下，两人婚姻破碎，田心被逐出家门。后在好友帮助下，田心重获信心，成为“涛涛宝网”专职卖家，历经种种挫折磨难，终于成为皇冠卖家，并以勇斗网络专职黑评手的胆量，细心检查进出货且表明细节的用心等，与众多卖家一起，重建网络购物的信赖体系。阴谋大白于天下，天齐得知错怪田心企图挽回，奈何田心亦非笼中雀鸟，她以凭借自己一手经营的网店闯出一片天，摇身变成富甲一方的涛女郎。2.5. 4 Requirements for technological edges of splicing panels