I checked so many webseites, blogs and tutorials but I still have this issue when I use ldapadd command. #ldapadd -H ldap:/// -D "cn=admin,cn=config" -x -w mypassword -f cn\=\{0\}host.ldif adding new entry "cn=host,cn=schema,cn=config" ldap_add: Other (e.g., implementation specific) error (80) additional info: olcAttributeTypes: Duplicate attributeType: "1.3.6.1.4.1.37389.1000.0.90.2.12"
Let me highlight that this type does not exist in my /etc/ldap/schema directory !!