ATTRIBUTE_TYPE ( 2.5.4.11
 NAME ( 'ou' 'organizationalUnitName' )
 DESC RFC2256: organizational unit this object belongs to
 SUP name
 EQUALITY caseIgnoreMatch
 SUBSTR caseIgnoreSubstringsMatch
 SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
 USAGE userApplications
 )
