Nutanix Certified Associate Practice Exam

In clusters configured with an HTTP proxy server, when is it required to configure the HTTP proxy whitelist method?

1. To enable API access

2. When HTTP traffic is prioritized

3. ssl port 9440 not open in proxy

4. For backup connections

The correct answer is: ssl port 9440 not open in proxy

When clusters are configured with an HTTP proxy server, it is particularly important to configure the HTTP proxy whitelist method in scenarios where specific ports must be accessible through the proxy. In this case, if SSL traffic on port 9440 is not open through the proxy, configuring the whitelist method allows you to explicitly allow traffic on that port to ensure that management operations and cluster communications that rely on secure connectivity can be facilitated. This is crucial because many Nutanix operations, especially those related to management and administration, communicate over port 9440 using HTTPS, and the inability to access this port through the proxy could disrupt critical functionalities. The whitelist method serves as a means to ensure that the essential ports are properly configured for secured and uninterrupted communication, thereby maintaining the integrity and availability of cluster operations. Having an open and properly configured whitelist within the proxy allows the Nutanix infrastructure to seamlessly communicate without facing blocks due to improper proxy filtering rules, enabling smoother overall management and operations of the cluster.