Caching the right way
 
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Port80 Software recently updated its CacheRight for IIS with features the company says will provide developers with intelligent cache management to reduce bandwidth utilization and load Web pages more quickly.
The company says the software gives Web site developers the ability to set reliable caching policies for site content. CacheRight 1.2 for IIS eliminates the need for developers to access Microsoft's Internet Information Services' administrative interface to control how caching is performed. With CacheRight, developers access a configuration file in the Web site's home directory, which lets them set up rules to control expiration times by file location or type.
Port80 changed the filter installation to global, which the company claims will make metabase bindings more robust. The IIS metabase is a database similar in structure to the Windows Registry. The metabase is optimized for IIS and provides a hierarchal storage and fast retrieval of IIS configuration properties for Web sites, virtual directories, and FTP, SMTP and NNTP sites.
The company also fixed the metabase enumeration feature to account for additional boundary conditions such as deleted sites. Plus, CacheRight now features integrated help documentation and an added contents file. The software keeps all cache control rules for a site together in a single text file and supports sitewide, directory or file-based caching rules.
CacheRight 1.2 comes with an online diagnostic tool for checking pages' ability to be cached, and it can support multiple servers.
The software runs with IIS 4 on Windows NT, IIS 5 on Windows 2000 and IIS 5.1 on Windows XP. A single-server unlimited domain license costs $150.
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Denise Dubie is a Staff Writer covering network management at Network World. She also works as a freelance writer in the Boston area. You can reach her at ddubie@nww.com.
