# File lib/devise_ldap_authenticatable/ldap/connection.rb, line 219
      def user_groups
        admin_ldap = Connection.admin
        DeviseLdapAuthenticatable::Logger.send("Getting groups for #{dn}")
        filter = Net::LDAP::Filter.eq(@group_membership_attribute, dn)
        admin_ldap.search(:filter => filter, :base => @group_base).collect(&:dn)
      end