JNDIRealm question

[Chong Yu Meng]

Hi All,

I have a configuration that is not covered in the JNDIRealm HOWTO, and 
was wondering if someone else has tried this before :

I am using OpenLDAP 2.1.22 on Red Hat 9. For the DN, I am using the CN 
instead of the UID (i.e., dn: cn=Zhu De,ou=People,o=Cymulacrum instead 
of uid=zhude,ou=People,o=Cymulacrum), and the roles recognized by Tomcat 
are in the Groups OU.

My question : how do I setup a Tomcat JNDI Realm such that it looks up 
roles based on the UID instead of the DN ? In the JNDIRealm HOWTO, the 
instructions assume that the DN is using the UID instead of the CN. For 
the userSearch, I would substitute with (uid={0}), since I need to do a 
search and comparison with an attribute. But to retrieve the role ... 
I'm not so sure about how to do this. I'm thinking that the stanza below 
would not work (no, I haven't tried it yet). Does anyone know how it 
should look ?

<Realm   className="org.apache.catalina.realm.JNDIRealm" debug="99"
    connectionURL="ldap://localhost:389";
         userBase="ou=people,o=Cymulacrum"
       userSearch="(uid={0})"
     userRoleName="memberOf"
         roleBase="ou=groups,o=Cymulacrum"
         roleName="cn"
       roleSearch="(uniqueMember={0})"
/>
Using the CN instead of the UID for the DN is actually (in my experience 
anyway) quite common -- Lotus Domino/Notes uses the CN for logging in, 
and Novell eDirectory too (though I suppose both can be configured to 
use the UID instead).

Thanks in advance,

pascal chong





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