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General Prerequisites

To install , access, and use configure Charon-SSP in the Azure cloud, you need an Azure subscription.

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• The Charon-SSP instance requires Internet access (via public IP address or NAT) for the license mechanism to work. If NAT is used, the gateway must be an instance in the same cloud-environment (the source address must be from the address range of the same cloud provider in which the Charon-SSP host instance runs). The public, Stromasys-operated license servers must be reachable on port 8080. Also, a DNS service must be reachable to resolve the host names of the license servers, or corresponding entries in /etc/hosts must exist. The license server details will be provided by Stromasys for platforms supporting the Charon-SSP AL images.
• If you change the instance size after first launching the instance and thereby change the number of CPU cores (or if the number of CPU cores is changed by any other method), the license will be invalidated.
• Some license licensing problems or other requirements (e.g., additional CPU cores needed) may require moving make it necessary to move the emulator to a new instance. Therefore Therefore, it is strongly recommended to store all relevant emulator data on a separate disk volume that can easily be detached from the old instance and attached to a new instance.
• Should access to the license be lost while the emulator is running, there is a grace period of 24 hours. If license access is not restored within this period, the emulator will stop (if a guest system is running at the time, this is the equivalent of disconnecting the power without clean shutdown, i.e., it may lead to loss of data).

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• Changing the number of CPU cores of the license server system.
• Copying the license server data to a different instance.
• Seriously damaging the root filesystem of the license server system.
• Re-installing the license server system.

Charon-SSP VE License Server Communication Requirements

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The minimum hardware requirements are described below. To learn about the default settings and how to use the Charon-SSP configuration options to determine the resource allocation, refer to the different configuration sections of the general Charon-SSP user's guide guide in particular, the CPU Configuration section.

Please note: Not all instance types and sizes on Azure offer the recommended minimum CPU speed for the host system. Whether such instance types can provide adequate performance depends on customer requirements.

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