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CSSE 492 Final Review. Dr. Yingwu Zhu Spring 2008. Overview. Web caching CDN Web search P2P networks. Web Caching (1). Why? Benefits How? Various caching types Pros and Cons Web caching problems Data freshness Dynamic content Privacy and security. Web Caching (2).
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CSSE 492 Final Review Dr. Yingwu Zhu Spring 2008
Overview • Web caching • CDN • Web search • P2P networks
Web Caching (1) • Why? Benefits • How? • Various caching types • Pros and Cons • Web caching problems • Data freshness • Dynamic content • Privacy and security
Web Caching (2) • Caching cooperation • ICP • Summary cache • Proxy cache implementation • Cache replacement • And so on…
CDN • What is CDN? • Why CDN? • How? • Redirection mechanisms • Example: AKAMAI, ESI technologies
Web Search • Web Search engines • Three components • Crawlers • Indexing • Ranking • Google • PageRank • Web Spamming
P2P Networks • Different form C/S models • Unstructured P2P • Napster, Gnutella, Kazza • Gia • Freenet • BitTorrent, BitTyrant • Structured P2P • What? • Chord, how?