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I'm looking for a way to create an empty LDAP dictionary with the rfc2307bis schema. On Debian when installing slapd or when reconfiguring with dpkg the nis schema is used by default. How do I remove it or replace it with rfc2307bis ? At initialization or after.

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I managed to do it. I edited this file: /usr/share/slapd/slapd.init.ldif and replaced a line:

#include: file:///etc/ldap/schema/nis.ldif
include: file:///etc/ldap/schema/rfc2307bis.ldif

And I ran dpkg-reconfigure slapd.

  • Note that your modifications to /usr/share/slapd/slapd.init.ldif will be lost on any upgrade of the slapd package. Modifying package files (except conffiles) is not supported. – Ferenc Wágner Jun 12 '17 at 6:57
  • That's not a problem, that is just for the creation of the database – DBLouis Jun 13 '17 at 10:20
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After initialization, list the loaded schemas:

# ldapsearch -LLL -Y external -H ldapi:/// -b cn=schema,cn=config -s one dn
[...]
dn: cn={2}nis,cn=schema,cn=config
[...]

Remove the NIS schema:

# ldapdelete -Y external -H ldapi:/// cn={2}nis,cn=schema,cn=config

Add the other one:

# ldapadd -Y external -H ldapi:/// -f /etc/ldap/schema/rfc2307bis.ldif
  • I just tried and I cannot remove the nis schema: - ldapdelete -Y external cn={2}nis,cn=schema,cn=config -> Unknown authentication method (-6) - ldapdelete -Y external -H ldapi:/// cn={2}nis,cn=schema,cn=config -> Server is unwilling to perform (53) – DBLouis Jun 13 '17 at 9:59
  • Right, I didn't remember correctly. There is some experimental delete support in the config database code (search for SLAP_CONFIG_DELETE). But it's inactive and probably neglected. Thus you can't remove a schema properly. You can remove directories under /etc/ldap/slapd.d/cn=config/cn=schema after stopping slapd, but that's unsupported. – Ferenc Wágner Jun 13 '17 at 11:11

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