Explanation
PAM is not a supported user authentication method for Universal Control Plane. According to the official documentation, the supported methods are LDAP, Active Directory, SAML 2.0, and local users.
References: https://docs.docker.com/ee/ucp/admin/configure/external-auth/

Explanation
This does not configure a Docker container to export container logs to the logging solution. The docker system events command shows information about real-time events in the Docker daemon. The --filter flag allows you to filter the output by various criteria, such as type, action, image, container, etc. However, splunk is not a valid filter value and will cause an error. To configure a Docker container to export container logs to the logging solution, you need to use the --log-driver and --log-opt flags when creating or running the container.
These flags allow you to specify which logging driver and options to use for the container. For example, to use Splunk as the logging driver, you can use --log-driver splunk and provide the Splunk URL, token, and other options using --log-opt. References: https://docs.docker.com/engine/reference/commandline/system_events/,
https://docs.docker.com/config/containers/logging/configure/,
https://docs.docker.com/config/containers/logging/splunk/