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An Amazon Machine Image (AMI) is an encrypted machine image stored in Amazon S3. It contains all the information necessary to boot instances of your software.
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An AMI is a packaged environment that contains a configured Linux operating system...
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An Array is a single server type used for horizontal scaling. It may be a single worker slave task plugged into our Grid system to scale based on the number of jobs in a queue. Or it may be your Deployment's application server that you want to scale dynamically based on the load or even schedule to scale based on known traffic patterns. Defining an array is simple. Select the type of server you would like to scale and then define what deployment you're scaling and how you would like RightScale to automate the process for you.
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AWS is short for Amazon Web Services. In addition to selling books and variety of other consumer products, Amazon also offers a variety of web services that help web developers build next generation web platforms.
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A compute unit is measurement tool used to compare and contrast different virtual servers (instances). One EC2 Compute Unit provides the equivalent CPU capacity of a 1.0-1.2 GHz 2007 Opteron or 2007 Xeon processor. This is also the equivalent to an early-2006 1.7 GHz Xeon processor.
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A deployment is a clustered architecture that represents all of the instances (servers) in your application and associates them with each other. As a result you're able to specify global parameters that all of the instances inherit, which makes it really easy to add additional components without the need for extra configuration...
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EC2 stands for Amazon's Elastic Compute Cloud. Using EC2 you can launch instances (specific packages of dedicated compute resources) that look and feel just like traditional remote servers. Resources are delivered in a matter of seconds, not days or weeks as with traditional providers and you can now request 10, 100, 1000+ servers based on your web applications needs at any given time. EC2 changes the way that computing resources are delivered to the consumer. You are no longer limited by server capacity or long term service contracts. EC2 delivers a utility computing model where you pay as you go and only pay for what you use. It also provides full control of these resources where you can launch and terminate new servers at will.
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Launch permission granted to a specific user.
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A set of customer instances that have been designated by the customer as being related by assigning them the same security group when the instances were first run. The Amazon EC2 firewall controls access to instances based on the instance's group membership and the rules defined for the group.
- Browse Related Terms: Amazon Machine Image (AMI), array, AWS (Amazon Web Services), compute unit, deployment, EC2 (Elastic Compute Cloud), group, Instance, public access, security group, SSH Key
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All > Technology > Parallel Computing > Cloud Computing > Amazon Web Services > Amazon EC2
Once an AMI has been launched, the resulting running system is referred to as an instance. All instances based on the same AMI start out identical and any information on them is lost when the instances are terminated or fail.
An instance is the AWS version of a server. They come in a variety of sizes small, large, and extra-large and are designed to provide predictable and dedicated computing power on demand. Amazon charges you directly based on instance-per-hour usage.
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All > Technology > Parallel Computing > Cloud Computing > Amazon Web Services > Amazon EC2
AMI attribute allowing users to launch an AMI
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For even more security, Amazon provides the option of completely removing public access to an instance. This will ensure that you are safe from any outsiders gaining access to your machine and even prevents Denial and Service attacks.
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An AMI that all users have launch permissions for.
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A collection of instances started as part of the same launch request.
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A security group is Amazon's version of a firewall that includes some additional features. It allows you to specify certain security settings on an instance specific basis. You have the ability to filter traffic based on IP's (a specific address or a subnet), packet types (TCP, UDP or ICMP), and ports (or a range of ports). You can also grant access to an entire security group. This allows your trusted machines to access each other without having to open ports to the public.
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An AMI that users other than the owner have launch permissions for.
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When you launch an image through AWS, you will specify a particular SSH Key to associate with that image. This allows you to gain access to your machines without using passwords. This is the recommended (and more secure) way to access your instances. RightScale uses this key to communicate and monitor your instances. Do not change it.
- Browse Related Terms: Amazon Machine Image (AMI), array, AWS (Amazon Web Services), compute unit, deployment, EC2 (Elastic Compute Cloud), group, Instance, public access, security group, SSH Key