Amazon EC2 Running Windows

Amazon Elastic Compute Cloud: 2008-08-08

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Amazon EC2 Running Windows

As part of this service, Amazon EC2 instances can now run Microsoft Windows Server 2003. Our base Windows image provides you with most of the common functionality associated with Windows. However, if you require more than two concurrent Windows users or need to leverage applications that require LDAP, Kerberos, RADIUS, or other credential services, you must use Windows with Authentication Services. For example, Microsoft Exchange Server and Microsoft SharePoint Server require Windows with Authentication Services.

[Note] Note

To get started using Windows instances, we recommend downloading the latest Elasticfox Firefox extension.

There are differences in pricing between Windows and Windows with Authentication Services instances. For information on pricing, go to the Amazon EC2 Portal Page.

Windows AMI

The Windows public AMIs that Amazon provides are unmodified versions of Windows with the following two exceptions: we added drivers to improve the networking and disk I/O performance and we created the Amazon EC2 configuration service. The Amazon EC2 configuration service performs the following functions:

  • Randomly sets the Administrator password on initial launch, encrypts the password with the user’s SSH key, and reports it to the console. This operation happens upon initial AMI launch. If you change the password, AMIs that are created from this instance use the new password.

  • Configures the computer name to the internal DNS name. To determine the internal DNS name, see Instance Addressing.

  • Sends the last three system and application errors from the event log to the console. This helps developers to identify problems that caused an instance to crash or network connectivity to be lost.

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