Eucalyptus stands for Elastic Utility Computing Architecture for Linking Your Programs to Useful Systems. It is an open-source software framework that provides the platform for private cloud computing implementation on computer clusters. Eucalyptus implements infrastructure as a service (IaaS) methodology for solutions in private and hybrid clouds.
Eucalyptus provides a platform for a single interface so that users can calculate the resources available in private clouds and the resources available externally in public cloud services. It is designed with extensible and modular architecture for Web services. It also implements the industry standard Amazon Web Services (AWS) API. This helps it to export a large number of APIs for users via different tools.
Techopedia explains Eucalyptus
Eucalyptus comes in two versions: the open-core enterprise edition and the open source edition. It can work with most Linux distributions as well as host Microsoft Windows images.
Eucalyptus has the following key features:
Support for multiple users with the help of a single cloud
Support for Linux and Windows virtual machines
Use of WS-Security to ensure secure communication between internal resources and processes
The option to configure policies and service level agreements based on users and the environment
Provisions for group, user management and security groups
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