摘要:
1、各个层的作用 物理层:(physical Layer):物理层负责传送比特(Bit),涉及到接口和传输媒体的机械 电气特性 数据链路层:(data link layer):数据链路层负责传送的帧(Frame) 网络层(Network Layer):网楼层负责路由传递分组 传输层(Transpor 阅读全文
摘要:
1、we sue the Search Engines Shodan we can gather much information on the line web , such we want to find a American IIS service we can use the command 阅读全文