Abstract
In this chapter, we give a clear and precise definition on when a Web object is allowed to be cached. A thorough, well-defined definition allows Web cache users to understand what requests they make could potentially be cached and as well is necessary for system administrators as a good tool in improving quality of service (QoS) for end users. We also provide the characteristics of Web objects. We explain the two basic architectures of Web proxy servers and introduce Squid, the open source proxy cache server.
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Essentially, any characteristic could be the request value, if the algorithm makes its decision based on one variable that has a total, well-defined ordering.
References
S. Podlipnig, L. Boszormenyi, A survey of web cache replacement strategies. ACM Comput. Surveys 35(4), 374–398 (2003)
Hypertext transfer protocol–HTTP/1.1 [online document] [cited Aug. 14, 2007] available. WWW: http://www.w3.org/Protocols/rfc2616/rfc2616.html
What is squid?, available at http://www.squid-cache.org/Intro/
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© 2013 Hala ElAarag
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ElAarag, H. (2013). Background Information. In: Web Proxy Cache Replacement Strategies. SpringerBriefs in Computer Science. Springer, London. https://doi.org/10.1007/978-1-4471-4893-7_2
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DOI: https://doi.org/10.1007/978-1-4471-4893-7_2
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Publisher Name: Springer, London
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Online ISBN: 978-1-4471-4893-7
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