User Authentication Strategies in Multi-Institutional Environments > Overview of Proxy Servers > Proxies for remote resource access

Advantages, Disadvantages

Transparent Proxy servers...

...are less computing intensive because they do not examine the content of each HTML page.

...are easier to program than Rewriting Proxies.

...require users to reconfigure their browsers (education problem).

...may not work with some corporate or commercial Internet Service Providers.

Rewriting Proxy servers...

...require no changes to the user's browser and work with browsers on firewalled networks.

...sensitive to "incorrect" HTML.

...may not work with sites using sophisticated JavaScripts.