Configuration enforcement
Configurations are the primary way that a device management service delivers and manages policies and restrictions on managed devices. If organizations need to configure a large number of devices—or to provide lots of custom email settings, network settings, or certificates to a large number of devices—configurations are a safe and secure way to do it.
Configurations
A configuration is an XML profile or json-formatted file following a certain structure and consists of payloads that load settings and authorization information onto Apple devices. Configurations automate the configuration of settings, accounts, restrictions, and credentials. These files can be created by a device management service or Apple Configurator for Mac, or they can be created manually. Before organizations send a configuration to an Apple device, they need to enroll the device in the device management service using an enrollment profile.
Enrollment profiles
An enrollment profile is a configuration with a device management service payload that enrolls the device in the device management service specified for that device. This allows the service to send commands and configurations to the device and to query certain aspects of the device. When a user removes an enrollment profile, all configurations, their settings, and depending on the enrollment type and used configuration also managed apps based on that enrollment profile are removed with it. There can be only one enrollment profile on a device at a time.
Example configurations
A configuration contains a number of settings in specific payloads that can be specified, including (but not limited to):
Passcode and password policies
Restrictions on device features
Network and VPN settings
Microsoft Exchange settings
Mail settings
Account settings
LDAP directory service settings
CalDAV calendar service settings
Credentials and identities
Certificates
Software updates
Profile signing and encryption
Configuration profiles can be signed, to validate their origin, and encrypted, to help ensure their integrity and protect their contents. Configuration profiles for Apple devices are encrypted using the Cryptographic Message Syntax (CMS) specified in RFC 5652, supporting 3DES and AES-128.
Profile installation
Configurations can be installed on devices using a device management service or manually by the users. Alternatively, Apple Configurator for Mac can be used to deploy configurations to iPad, iPhone, and Apple TV devices. Some configurations require the installation using a device management service. For information on how to remove profiles, see Intro to device management profiles in Apple Platform Deployment.
Note: On supervised devices, configuration profiles can also be locked to a device. This is designed to prevent their removal or to allow removal only with a passcode.