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Modern Linux Administration by Sam R. Alapati

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Chapter 13. Cloud System Administration – A Crash Course on Amazon Web Services

Traditional system administration mainly involved configuring, maintaining, and keeping available hosts and networks so users could run their applications. Administrators were mainly concerned with the racking of servers, installation of the operating system, and the configuration of software.

Cloud based infrastructures such as those offered by Amazon (Amazon Web Services), Google (Google Cloud Platform), Microsoft (Azure), and Rackspace (Rackspace Cloud, Private Cloud) enable you to focus on your applications and hardware, by providing highly available, infinitely scalable and secure environments for deploying your applications. By taking over mundane traditional tasks such as provisioning, securing, managing network issues, and patching, Cloud platforms have revolutionized the way system administrators manage their infrastructures.

Cloud services offer many benefits over traditional data center focused infrastructures. Here’s a listing of the advantages:

  • You can focus on the building of your applications, instead of babysitting hardware

  • You can provision even very large infrastructures lightening quick, with very little effort

  • Your applications are continuously available even during server crashes and failures, as the Cloud infrastructure can automatically redirect traffic from failed instances to other healthy instances

  • You can test your applications before deploying them, and when you’re ...

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