I'm using 3.3.1 WP and 1.6.1 wpDirAuth.
Briefly my LDAP looks like this:
1. I tried to put group cn using testgp1 and it failed to find the group for to login user1.
2. I removed the group, keep in blank, managed to login to as user1 (set account filter to cn).
How should I setup the group part so that it will allow me to only authenticate users with membership in that group?