The system cannot resolve the host name that is associated with the cloud provider by using the configured DNS servers for the system. For some cloud providers, the user entered this host name. For others, such as Amazon S3, the system determines the host name.
If an endpoint URL that contains a host name is associated with the cloud account, verify that the host name is correct. Verify that the system DNS servers are configured correctly and are working correctly. After you correct any problems that you find, retry the command.