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HTTP slow attack is to use the normal interaction mechanism of HTTP protocol to establish a connection with the target server first, and then keep the connection unreleased for a long time. If an attacker continues to establish such a connection with the target server, the available resources on the target server will be exhausted and normal services cannot be provided.这是吴成布置的，闻听王爷不喜，慌忙要带人去摘。In a tcp connection, Rst means reset, which is used to close the connection in case of abnormality. When the sending end sends rst message to close the connection again, it does not need to wait for all the datagrams in the buffer to be sent out, but will directly discard the data in the buffer and send rst message. Similarly, after receiving the rst message, the receiving end will empty the buffer and close the connection, and does not need to send ack message for confirmation.今夜...轮到谁？友情提示：小盆友请在怪蜀黍陪同下观看！Almost all cellular phones must support multi-frequency and multi-radio. The spectrum allocation for global wireless communications has been redefined or redefined by relevant authorities. From a historical point of view, spectrum allocation has always been dominated by various countries, so it is not consistent in the world, because they are usually controlled by local governments. Unfortunately, the adjustment of spectrum is driven by the economies of scale of the industry, not by foresight in the field or cooperation between relevant institutions around the world. Without spectrum comparison, it is difficult to realize equipment standardization. As the wireless communication industry continues to allocate spectrum, it is foreseeable that different frequency bands will still follow localization requirements in the future instead of being optimized for global needs.新证据可以解释在百幕大三角发生的一次神秘的不明飞行物遭遇。一组专家将调查外星人是否曾到过这片水域 ，该团队调查了各种谜团，并试图确定这些奇怪的不幸故事纯粹是巧合，还是表面之下隐藏着科学或超自然的解释。