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RE: [grouper-users] Subject ID

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  • From: Gagné Sébastien <>
  • To: "Klug, Lawrence" <>, <>
  • Subject: RE: [grouper-users] Subject ID
  • Date: Wed, 22 Feb 2012 13:35:54 -0500

I think it has to be sometime that could never change. For example, using a DN isn’t a good idea since the user could be transferred to another OU and that would change his DN.


Here we will be using sAMAccountName in Active Directory, it’s their login id and it’s globally unique. The user will always have the same login. Some people might use CN. I’m not familiar with EPPN, but if it never changes then it might be a good idea.


Hope that helps a little


Sébastien Gagné,     | Analyste en informatique

514-343-6111 x33844  | Université de Montréal,

                     | Pavillon Roger-Gaudry, local X-100-11




De : [mailto:] De la part de Klug, Lawrence
Envoyé : 22 février 2012 13:14
À :
Objet : [grouper-users] Subject ID


General question:


What is the best practice for defining Subject ID – do most universities use EduPersonPrincipalName (EPPN) or something else?




Lawrence Klug

IMS Systems Integration

310 825-2061

ext 52061


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