📁 代理内容过滤
Proxy server products whose main focus is filtering features that prevent unauthorized viewing of unapproved Internet content. Such products usually disallow access to material which the administrator or organization considers to be either offensive or unrelated to the task for which Web access is provided to individuals. A common use for such tools occurs in preventing children and young people from viewing websites containing violent or pornographic material. However, most filters can be used to block a variety of access based on the criteria set by the administrator.
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条目 (10+)
BBC News : Web rebels profit from net controls
http://news.bbc.co.uk/1/hi/sci/tech/2115887.stm
NYT: Rebel Outpost on the Fringes of Cyberspace
http://www.nytimes.com/library/tech/00/06/biztech/articles/04have.html