期刊名称：Oriental Journal of Computer Science and Technology
印刷版ISSN：0974-6471
出版年度：2010
卷号：3
期号：1
页码：121-124
出版社：Oriental Scientific Publishing Company
摘要：Virtual Private Networking, or VPN, is a technology that lets people access their office's computernetwork over the Internet while at home or traveling. Accessing a network in this way is referred to asremote access. (For comparison, another common form of remote access is dialing in to the officenetwork over a telephone line.) But VPN is useful for more than just remote access. It can also be usedto link two separate offices over a distance. This is sometimes called a "persistent VPN tunnel", or"site-to-site VPN".
