国产亚洲一卡2卡三卡4卡乱码视频

田遥闪身避开，笑道：瞧你这当哥哥的。The "Regulations" are characterized by a wide range of uses and no strict restrictions on the status of the formulation and promulgation agencies. The matters and problems involved are not as important as those in the regulations, and the scope is relatively narrow. The content is detailed and specific, with strong pertinence; Generally, it is not only an "independent" normative document, It can also be a "supplementary" normative document (the content is to supplement the content of other normative documents according to law or authorization, and to refine and perfect them), It can also be "implemented" normative documents (it is directly formulated for the effective implementation of other normative documents, and does not create new rules by itself, but only makes specific provisions on the circumstances under which these documents are applicable, and makes detailed explanations on relevant concepts and issues). However, judging from the actual usage, the regulations are more suitable as "independent" and "supplementary" normative documents.A TCP connection is a quad, and a connection is uniquely determined by the source IP, the source port, the destination IP and the destination port. Therefore, if C wants to forge the packet from A to B, it should fill in the above-mentioned IP header and TCP header with the source IP, source port, target IP and target port. Here B is the server, IP and port are open, A is the target we want to attack, IP certainly knows, but the source port of A is not clear, because it may be randomly generated by A. Of course, if we can find out the rule of generating source port for common OS such as Windows and Linux, we can still do it. In addition, we can step on the connection port of Car A through a large number of controlled hosts.