Technical Research Of VPN And Application In The Oil Field

"Technical research of VPN and application in the oil field " are in order to strengthen the study on VPN , this new technology , of our oil field and understand , and realize on this basis that the production unit in the oil field and individual's user insert the corporate network of oil field long-rangly , can not only can improve working efficiency reduce the production cost in a large amount greatly but also.The technology of VPN means that sets up dedicated network in the public network, the data spread in the public network through safe " encrypting the pipeline ". Enterprises only need to rent the local data special line, connect to the local public information network , the organizations of all parts can transmit information each other ; Meanwhile, enterprises can also utilize dialing accession equipment of the public information network , let one's own users dial to public information on net , can join while entering corporate network . Use VPN to save the cost , offer the remote access , expanding strong , easy advantage of managing and realizing controlling in an all-round way etc., it is enterprise's network development trend at present and in the future.According to the oil field unit and individual's user's demand for VPN, we have summed up three kinds of VPN solutions, users can choose according to one's own situation . These three kinds of solutions are separately: Virtual net of the remote access (AccessVPN ), and enterprises expand the virtual net (ExtranetVPN ) in the virtual net (IntranetVPN ) inside enterprises.In order to solve the online security problem that VPN uses, can't influence the field unit and individual in the oil field to insert the LAN of Zhongyuan Oil Field conveniently at the same time , we have set up the authentication centre of CA, each user that inserted to VPN has strengthened identity authentication .