A Practical Guide to Content Delivery Networks, Second - download pdf or read online

By Gilbert Held

ISBN-10: 1439835888

ISBN-13: 9781439835883

ISBN-10: 1439835896

ISBN-13: 9781439835890

Following within the culture of its renowned predecessor, a pragmatic consultant to content material supply Networks, moment version bargains an obtainable and arranged method of enforcing networks in a position to dealing with the expanding info specifications of today's always on cellular society. Describing how content material supply networks (CDN) functionality, it presents an figuring out of internet structure, in addition to an outline of the TCP/IP protocol suite. The booklet reviews at the improvement of the applied sciences that experience developed during the last decade as distribution mechanisms for varied forms of web pages. utilizing a structural and visible technique, it presents step by step information in the course of the strategy of constructing a scalable CDN. provides a transparent realizing of the framework and person layers of layout, together with caching and cargo balancing Describes the terminology, strategies, and strength difficulties whilst imposing a CDN Examines within your budget how one can load stability net provider layers Explains how software servers connect with databases and the way platforms will scale as quantity raises Illustrates the impression of video on facts garage and supply, in addition to the necessity for information compression Covers Flash and the rising HTML5 average for video Highlighting the benefits and downsides linked to most of these networks, the ebook explains the right way to use the networks in the net operated via a number of ISPs as mechanisms for successfully supplying internet server dependent details. It emphasizes a best-of-breed method of construction your community to permit for an efficient CDN to be outfitted on virtually any finances. that can assist you start, this vendor-neutral reference explains how you can code websites to optimize the supply of assorted different types of media. it is also examples of winning ways, from outsourcing to do it your self.

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Additional resources for A Practical Guide to Content Delivery Networks, Second Edition

Example text

This limitation still exists today with Web servers and has been exploited through the use of denial of ­service (DOS) attacks, in which the nature of the Transmission Control Protocol (TCP) and its three-way handshake permits a DOS attack to occur. In addition to being subjected to potential attacks, network traffic occurring as a result of many file transfers could ­significantly affect communications. The limitations associated with file sharing resulted in the use of database servers. Employing a relational database management system (DBMS), client queries were directly answered, considerably reducing network traffic in comparison to the use of networks when a total file-transfer activity occurred.

Regional, Business, Technology, and many other potential selections. 13 illustrates the potential feeds available for user selection when this author browsed the New York Times Web site. Just as a matter of conjecture, perhaps providing a wealth of free information has resulted in the financial plight of the print media. 4 Advantages Similar to most technologies, there are several advantages associated with push technology. From the viewpoint of the client, push technology permits predefined requests that enables items of interest to be received when such items have Web-page changes.

Because of the previously mentioned problems associated with packet loss and increased response time, another solution evolved during the 1990s. This solution was based upon moving server content from a central location to multiple distributed locations across the Internet. In doing so, Web pages were moved closer to the ultimate client requester, reducing both the number of router hops a request would have to traverse as well as the round-trip propagation time. In addition, since Web pages are now closer to the end user, traffic would not have to flow through peering-point bottlenecks, further enhancing traffic flow and minimizing traffic delays.

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A Practical Guide to Content Delivery Networks, Second Edition by Gilbert Held

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