为了使多个企业网络可以利用Internet将其连接起来，且只提供给可信任的企业或伙伴访问，本文通过配置VPN服务器，加密技术，验证技术，数据确认技术的共同应用，最终实现了在Internet建立一个专用的网络，让远程用户通过Internet来安全访问网络内部的网络资源。-To make multiple enterprise networks can use the Internet to connect them, and only to trusted businesses or partner access to this server by configuring VPN, encryption, authentication, data validation techniques common applications, and ultimately on the Internet establish a dedicated network, allowing remote users to securely access the network through the Internet within the network resources.