Evolução da tecnologia de proxy: análise de características

Abstract

Research in three largely used products in the market (Squid, Ironport and Blue Coat), in order to understand how the proxies (and their caches) deal with the dynamic content of the web pages and how long the local cache of this content would be refreshed compared to its original in the Internet. Measurements done by using 13 access samples to a web site of national relevance that contains dynamic content with the three products mentioned above were compared with the hash obtained from direct access without a proxy intermediation. The results showed the different behaviors of the cache of each of the products in web dynamic content and what proprietary software products showed advantages when compared to free software.