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Activating Secure Network CommunicationsLocate this document in the navigation structure

Use

If you have high security requirements, you can use Secure Network Communications (SNC) to protect RFC connections in the Transport Management System. This encrypts the RFC connections that are generated during the TMS configuration.

For more information about SNC, see  Secure Network Communications (SNC).

Note

If you use SNC for RFC connections between SAP systems, you must ensure that the Transport Workflow cannot trigger any imports into these systems.

Prerequisites

The SAP Systems in your domain are set so that they can use SNC-secured RFC connections to communicate with each other (as described in the SNC documentation). You do not need to convert the whole system landscape at once. Instead, you can choose to do it system by system.

Note

Remember that you must only prevent unsecured RFC access to systems once all systems in the domain have been converted to SNC. Take into account the restrictions on TMS mentioned above when you activate the SNC-secured connections for your SAP Systems.

Procedure
  1. Log on to the SAP System that functions as the transport domain controller.
  2. Call transaction STMS.
  3. Choose Start of the navigation path Overview Next navigation step Systems End of the navigation path. The system overview appears.
  4. Choose Start of the navigation path Goto Next navigation step Transport Domains End of the navigation path. The screen Display TMS Configuration: Domain <Domain name> appears.
  5. Choose the Management tab.
  6. Switch to change mode.
  7. Under Security Options, select the SNC Protection option Active.
  8. Select the pushbutton with the quick info Accept SNC Information. This calls the SNC address information from all systems of your own and linked domains.
  9. Save the changes and distribute the configuration.
Result

The RFC connections between the systems in your transport domain are protected by SNC. If you use a domain link to communicate with systems in another domain, this connection is also protected by SNC.