I gave a try like this way:
I installed an openldap 2.6 as target server, started it up with initial
slapd.ldif.
Then I tried to ldapadd entries that exported from source server, but failed on
the first entry, error message:
[root@ldap-ol8 openldap]# ldapadd -H ldap:/// -D "cn=admin,dc=example,dc=com"
-W -f /tmp/test.ldif
adding new entry "dc=example,dc=com"
ldap_add: Invalid syntax (21)
additional info: objectClass: value #1 invalid per syntax
the ldif file like:
dn: dc=example,dc=com
dc: example
objectClass: top
objectClass: domain
objectClass: nisDomainObject
nisDomain: example.com
What's wrong with objectClass??