"schemacheck off" has not been supported for a long time, i.e. http://www.openldap.org/lists/openldap-software/200404/msg00625.html
You cannot use it in a current version, and should not be using it in any version.
On Wed, 6 Dec 2006, Anant S Athavale wrote:
Dear List:
In version 2.0.x of openldap, I used to use, schemacheck off in slapd.conf file. But, in the newer version 2.3.x, this directive is getting ignored.
I want schemacheck to be disabled, how do I achieve this in the current version.
Regards,
Anant Athavale,