Banner Web Tailor / User Guide / 8.3 - Parent Directory

Browsers and cachingBrowsers can store copies of recently accessed pages on local computers so the page doesnot have to transmitted across the network the next time you access it.While this is helpful for performance, it does create a security issue for educationalinstitutions where computers are often shared in public settings like labs and libraries.If your browser has cached a recently-visited page with sensitive information, it may bepossible for the next user to retrieve that page from the cache.The issues are:• How to control which pages are cached by the browser• What controls are available when someone accesses a page via the Back buttonTo control which pages are cached by the browser, you should make sure the following arealways set:• For Netscape:• Find Edit>Preferences>Cache>Compare this page in the cache to the nextpage on the network• Select Everytime• For Internet Explorer:• Find Tools>Internet Options>Advanced>Security• Select Do not save encrypted pages to diskTo control what happens when someone uses the Back button is more difficult. We havefound that different versions of the same browser from the same company can ignore orcomply with HTML caching directives when re-displaying a cached page via the Backbutton.NoteThe best way to make data secure is to train users to close the browserafter they log off, as directed on the Logout page.•5-12 Banner Web Tailor 8.3 January 2010User GuideTechnical Reference