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Web Services Delivered from the Cloud
Published in John W. Rittinghouse, James F. Ransome, Cloud Computing, 2017
John W. Rittinghouse, James F. Ransome
Amazon EC2 presents a true virtual computing environment, allowing clients to use a web-based interface to obtain and manage services needed to launch one or more instances of a variety of operating systems (OSs). Clients can load the OS environments with their customized applications. They can manage their network’s access permissions and run as many or as few systems as needed. In order to use Amazon EC2, clients first need to create an Amazon Machine Image (AMI). This image contains the applications, libraries, data, and associated configuration settings used in the virtual computing environment. Amazon EC2 offers the use of preconfigured images built with templates to get up and running immediately. Once users have defined and configured their AMI, they use the Amazon EC2 tools provided for storing the AMI by uploading the AMI into Amazon S3. Amazon S3 is a repository that provides safe, reliable, and fast access to a client AMI. Before clients can use the AMI, they must use the Amazon EC2 web service to configure security and network access.
Implementation of serverless cloud GIS platform for land valuation
Published in International Journal of Digital Earth, 2021
Muhammed Oguzhan Mete, Tahsin Yomralioglu
EC2 is a web service that offers secure, resizable compute capacity and scalable deployment of applications in the cloud. The EC2 service can be regarded as IaaS since AWS takes the responsibility of server, storage, networking, and virtualization itself; on the other hand, users are responsible for handling operating system, data applications, middleware, and runtime (Shao et al. 2012). Users can launch an Amazon Machine Image (AMI) to create a ready-to-use virtual machine, which is called ‘instance’. AMI consists of Windows or the Linux operating system, software, and applications. Management and configuration of the instances can be controlled over management panel called ‘console’.