December 2001
Intermediate to advanced
400 pages
12h 2m
English
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8.4. Security and Access Control Issues
Every time a new component is added to the Internet, it is vital to consider the impact this component has on the security and reliability of the Internet as a whole. In the case of proxies, this impact can be profound; it affects how Web servers implement access control—that is, limit the clients that can use their services—as well as a variety of security issues.
8.4.1. Proxies and Web Server Access Control
Many Web sites provide services only to specific clients, for example, those who agree to pay for the service. To enforce access restrictions, Web servers must implement client access control. Some Web servers implement access control at the IP layer. In this mechanism, a server maintains a list of ...