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# Configuring a Shared Memory Transport for Access by Different Users: UNIX

On UNIX platforms, the shared memory segment underlying a shared memory transport belongs to a specific user. Nonetheless, you can configure the UNIX environment so that different users can access it.

Before you beginThe users must be in the same group.

Procedure
1. Set the `umask` as follows:

       umask u=rwx,g=rwx,o=rx

   After setting the `umask` globally, the application process automatically creates a segment that different users can access.

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