# Domain configurations In Amazon IoT Core, you can use domain configurations to configure and manage the behaviors of your data endpoints. With domain configurations, you can generate multiple Amazon IoT Core data endpoints, customize them with your own fully qualified domain names (FQDN) and associated server certificates, and also associate a custom authorizer. For more information, see [Custom authentication and authorization](custom-authentication.md). **Topics** + [What is a domain configuration?](iot-domain-configuration-what-is.md) + [Creating and configuring Amazon managed domains](iot-custom-endpoints-configurable-aws.md) + [Creating and configuring customer managed domains](iot-custom-endpoints-configurable-custom.md) + [Managing domain configurations](iot-custom-endpoints-managing.md) + [Configuring TLS settings in domain configurations](iot-endpoints-tls-config.md) + [Server certificate configuration for OCSP stapling](iot-custom-endpoints-cert-config.md)