Note: This web site is only kept up to date for OSG Software 1.2 (VDT 2.0.0). If you are looking for information for the most recent release, the RPM-based OSG Software 3.0, please see the OSG documentation web site




GUMS is a "grid identity mapping service". It replaces the Globus grid-mapfile and it will map users (as described by their X509 certificate distinguished names, plus perhaps a VOMS role) to a user. It can obtains lists of users from an LDAP server, a VOMS server, or from manual configuration. It completely replaces the Globus grid-mapfile. In order to do so, a callout from Globus must be used. In the VDT, we provide PRIMA for this purpose.

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