Azure Information Protection requirements

Before deploying Azure Information Protection, ensure that your system meets the following prerequisites:

• Firewalls and network infrastructure

Firewalls and network infrastructure

If you have firewalls or similar intervening network devices that are configured to allow specific connections, the network connectivity requirements are listed in this Office article: Microsoft 365 Common and Office Online.

Azure Information Protection has the following additional requirements:

• Microsoft Purview Informaiton Protection client. To download labels and label policies, allow the following URL over HTTPS: *.partner.outlook.cn

• Web proxies. If you use a web proxy that requires authentication, you must configure the proxy to use integrated Windows authentication with the user's Active Directory sign in credentials.

  To support Proxy.pac files when using a proxy to acquire a token, add the following new registry key:

  • Path: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\MSIP\
  • Key: UseDefaultCredentialsInProxy
  • Type: DWORD
  • Value: 1

• TLS client-to-service connections. Don't terminate any TLS client-to-service connections, for example to perform packet-level inspection, to the aadrm.cn URL. Doing so breaks the certificate pinning that RMS clients use with Microsoft-managed CAs to help secure their communication with the Azure Rights Management service.

  To determine whether your client connection is terminated before it reaches the Azure Rights Management service, use the following PowerShell commands:

  $request = [System.Net.HttpWebRequest]::Create("https://admin.na.aadrm.cn/admin/admin.svc")
  $request.GetResponse()
  $request.ServicePoint.Certificate.Issuer
  

  The result should show that the issuing CA is from a Microsoft CA, for example: CN=Microsoft Secure Server CA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US.

  If you see an issuing CA name that isn't from Microsoft, it's likely that your secure client-to-service connection is being terminated and needs reconfiguration on your firewall.

• TLS version 1.2 or higher (unified labeling client only). The unified labeling client requires a TLS version of 1.2 or higher to ensure the use of cryptographically secure protocols and align with Microsoft security guidelines.

• Microsoft 365 Enhanced Configuration Service (ECS). AIP must have access to the config.edge.skype.com URL, which is a Microsoft 365 Enhanced Configuration Service (ECS).

  ECS provides Microsoft the ability to reconfigure AIP installations without the need for you to redeploy AIP. It’s used to control the gradual rollout of features or updates, while the impact of the rollout is monitored from diagnostic data being collected.

  ECS is also used to mitigate security or performance issues with a feature or update. ECS also supports configuration changes related to diagnostic data, to help ensure that the appropriate events are being collected.

  Limiting the config.edge.skype.com URL may affect Microsoft’s ability to mitigate errors and may affect your ability to test preview features.

  For more information, see Essential services for Office - Deploy Office.

• Audit logging URL network connectivity. AIP must be able to access the following URLs in order to support AIP audit logs:

  • https://*.events.data.microsoft.com
  • https://*.aria.microsoft.com (Android device data only)

  For more information, see Prerequisites for AIP reporting.

Coexistence of AD RMS with Azure RMS

Using AD RMS and Azure RMS side by side, in the same organization, to protect content by the same user in the same organization, is only supported in AD RMS for HYOK (hold your own key) protection with Azure Information Protection.

For other, non-migration scenarios, where both services are active in the same organization, both services must be configured so that only one of them allows any given user to protect content. Configure such scenarios as follows:

• If both services must be active for different users at the same time, use service-side configurations to enforce exclusivity. Use the Azure RMS onboarding controls in the cloud service, and an ACL on the Publish URL to set Read-Only mode for AD RMS.

Service Tags

If you're using an Azure endpoint and an NSG, make sure to allow access to all ports for the following Service Tags:

• AzureInformationProtection
• AzureActiveDirectory
• AzureFrontDoor.Frontend

Additionally, in this case, the Azure Information Protection service also depends on the following IP addresses and port:

• 13.107.9.198
• 13.107.6.198
• 2620:1ec:4::198
• 2620:1ec:a92::198
• 13.107.6.181
• 13.107.9.181
• Port 443, for HTTPS traffic

Make sure to create rules that allow outbound access to these specific IP addresses, and via this port.

Supported on-premises servers for Azure Rights Management data protection

The following on-premises servers are supported with Azure Information Protection when you use the Microsoft Rights Management connector.

This connector acts as a communications interface, and relays between on-premises servers and the Azure Rights Management service, which is used by Azure Information Protection to protect Office documents and emails.

To use this connector, you must configure directory synchronization between your Active Directory forests and Microsoft Entra ID.

Supported servers include:

For more information, see Deploying the Microsoft Rights Management connector.

Supported operating systems for Azure Rights Management

The following operating systems support the Azure Rights Management service, which provides data protection for AIP:

Next steps

Once you've reviewed all AIP requirements and confirmed that your system complies, continue with Preparing users and groups for Azure Information Protection.