Hi all. I'm new using openldap. I googled all info related with it. I decided to extend a ldap schema. but it didn't work. The error message is the following: adding new entry "cn=Gerald W. Cummings,ou=people,dc=example,dc=com" ldap_add: Undefined attribute type (17) additional info: businessName: attribute type undefined I had that error with the following files: #new object schema objectClass ( 1.3.6.1.4.1.4203.666.1.100 NAME 'YoLinuxPerson' DESC 'X-Person' SUP inetOrgPerson STRUCTURAL MAY ( personStatus $ preferredEmail $ mail2 $ businessName $ xmozillanickname $ birthdate $ c ) ) #new attributes # New attribute definitions: attributetype ( 1.3.6.1.4.1.4203.666.1.90 NAME 'personStatus' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{1024} ) attributetype ( 1.3.6.1.4.1.4203.666.1.91 NAME 'preferredEmail' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{1024} ) attributetype ( 1.3.6.1.4.1.4203.666.1.93 NAME 'businessName' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{1024} ) attributetype ( 1.3.6.1.4.1.4203.666.1.94 NAME 'xmozillanickname' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{1024} ) #attributetype ( 1.3.6.1.4.1.4203.666.1.95 NAME 'birthdate' SUP name ) Both files are inside of the schema folder with the same right that other files to run ldpap deamon without problem. ldap.conf file #Global section ##Include the minimum schema required. include /usr/local/etc/openldap/schema/core.schema ##Added to support the inetOrgPerson object. include /usr/local/etc/openldap/schema/cosine.schema include /usr/local/etc/openldap/schema/inteorgperson.schema #testing schemas include /usr/local/etc/openldap/schema/new-object.schema include /usr/local/etc/openldap/schema/new-attributes.schema What did I wrong? TIA -- M.S. José M. Briseño Cortés Universidad de Guadalajara Instructional Technologist Univ. Houston Moodle Teacher Certificate NTCM, IACEP, iNACOL, ACM member