By Mauricio Arregoces
Grasp the fundamentals of knowledge facilities to construct server farms that increase your site functionality examine layout guidance that express how one can set up server farms in hugely on hand and scalable environments Plan web site functionality potential with discussions of server farm architectures and their real-life functions to figure out your process wishes modern day industry calls for that companies have an online presence during which they could practice e-commerce and customer service, and identify a presence which could allure and raise their client base. Underestimated hit ratios, compromised bank card files, perceived sluggish site entry, or the notorious "Object now not discovered" signals make the variation among a winning on-line presence and one who is sure to fail. those demanding situations will be solved partially with using information heart expertise. info facilities swap site visitors according to info on the community, shipping, or program layers. content material switches practice the "best server" choice procedure to direct clients' requests for a particular provider to a server in a server farm. the easiest server choice method takes into consideration either server load and availability, and the lifestyles and consistency of the asked content material. information heart basics is helping the elemental thoughts at the back of the layout and scaling of server farms utilizing info heart and content material switching applied sciences. It addresses the rules and ideas had to tackle the most typical demanding situations encountered in the course of making plans, imposing, and dealing with net and intranet IP-based server farms. An in-depth research of the information middle expertise with real-life situations make facts heart basics a great reference for figuring out, making plans, and designing hosting and e-commerce environments.
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Compute grids might be geographically distributed, which requires a clear understanding of the protocols used by the grid middleware for provisioning and load distribution, as well as the potential interaction between a compute grid and a data grid. Blade servers can also be used to replace 1RU servers on web-based applications because of scalability reasons or the deployment or tiered applications. This physical separation of tiers and the ever-increased need for security leads to application layer ﬁrewalls.
Government–related topics about cryptography, PKI, transport security protocols (SSL and IP Security [IPSec]), authentication protocols and technologies, and network management security. This chapter also complements Chapter 9 with regards to the security design aspects of SSL and introduces the concept of SSL VPNs. • Chapter 16, “Load-Balancing Modes and Predictors,” discusses the load-balancing modes of operation, server load-balancing algorithms, and cache farm load-balancing algorithms. • Chapter 17, “Server Health Management,” discusses server health management through load balancers, SNMP, server failure detection and checking, in-band and out-of-band probes, and case studies on server checking for web hosting and e-commerce applications.
Part VI, “Appendixes,” is the ﬁnal part of this book: • Appendix A, “Character Sets,” covers multiple character sets, including ASCII, the extended ASCII sets, and the ISO-8859-1 set. • Appendix B, “HTTP Header Fields,” explains the details of HTTP header ﬁelds that were not described in Chapter 8. • Appendix C, “Video Encoding Mechanisms,” explains the removal of special and temporal redundancy in codecs with special focus on MPEG. • Appendix D, “Loopback Interface Conﬁguration Procedures,” provides an explanation about conﬁguring a machine with multiple IP addresses used as loopbacks for certain load-balancing modes of operation.