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The most basic defense at the network layer is RFC? 2827 [3]. Using input source filtering, ISP refuses to route a packet whose source IP address does not belong to its source subnet further. Input source filtering can effectively prevent SYN flooding attacks disguised as IP. However, this method is useless at present because it is difficult to deploy on a large scale. Moreover, input source filtering cannot resist distributed attacks."The best way to promote the process of collaboration and information sharing is to ensure that any information about successes and failures can be smoothly exchanged between agencies without causing subsequent disturbances. If an organization submits an attack report and the regulatory authorities jump out first to prepare for punishment, then no one will be willing to put the security situation on the table again, "ChipTsantes, head of information security consulting services at Ernst & Young, pointed out.津留崎优&池泽真的漫画《#与变成了异世界美少女的大叔一起冒险#》宣布TV动画化~　　一生都在环境艰苦的城市街头讨生活，泰勒·盖奇却从没有因为生命的困顿而放弃梦想，他知道自己是如此与众不同，终有一天会离开这里展开新的生活。因为打架而被强制进行社区劳动的泰勒从没想过，自己的命运在这一刻发生了根本的改变。