What must be added to the connection list of allowed domains for ActiveGate to function behind a firewall?

To ensure ActiveGate functions properly behind a firewall, it is essential to allow connections to the domains that provide the necessary services and updates. The correct choice in this context is related to domains that support cloud services, as ActiveGate needs to communicate with Dynatrace's backend infrastructure for tasks such as monitoring, data collection, and updates.

*.amazonaws.com is relevant because Dynatrace utilizes Amazon Web Services (AWS) for hosting various components of its platform. By adding this domain to the connection list of allowed domains, you enable ActiveGate to access required resources and services hosted on AWS, ensuring it can perform its functions without interruptions caused by firewall restrictions.

The other domains, while associated with significant technology providers, do not directly pertain to the core functionalities and the infrastructure utilized by Dynatrace for its services in the way that AWS does. Thus, allowing *.amazonaws.com specifically facilitates the necessary connections required for ActiveGate to operate within an enclosed network or behind a firewall, helping maintain the integrity and performance of monitoring activities.