Content Cache: Exception List

HTTP >  Configuration > Content Cache | Exception List

When administrators do not want to cache a specific URL, they can add the URL to the cache exceptions list. The behavior here is the same as the URL blocking list. Administrators can add a Web site, URL keyword, or string to exceptions list. URLs that match the list will not be cached by IWSVA.

You can have IWSVA block certain Web pages, domains, and URLs from being stored in the content cache. URLs blocked from the Content Cache are not policy based—it affects everyone in the organization.

• Note: Content caching is only supported in Forward Proxy mode.

Blocking URLs from the Content Cache combats large Web sites from being cached and taking up cache space that is more efficiently used for other common Web sites.

• Enable Content Cache—Enable or disable Content Cache (click Save after enabling or disabling content caching).

• Match—Enter an exact Web site, a keyword or phrase, or a string of characters in the field, and then configure IWSVA with how to apply the match. URLs blocked from the content cache supports both the ? and * wildcard.

• Web site—Limits the search to the string as a whole; used with one or more wildcards, this type of blocking can be especially useful for preventing entire Web sites from being cached. There is no need to include http:// or https:// in the URL (as it is automatically stripped).

• URL Keyword—Looks for any occurrence of the letters or numbers within a URL, and will match regardless of where the string is found (the string "sex" would be considered a match for "http://www.encyclopedia/content/sexton.htm" and the page blocked. Using wildcards with URL Keywords greatly increase the chance of false positives.

• String—Limits the search to the string as a whole; for example, to target a specific site, page, file, or other particular item.

• Import Blocked Content Cache List and Exceptions—You can import an existing list of URLs that you want to block or exempt from content caching. For example, if you have a list of URLs from a third-party vendor, Web Manager, or related software program, or a list of sites you have compiled using a text editor, you can import the list rather than enter them one-by-one in the Match field. Imported lists must conform to a defined standard.