/etc/passwd backend to slapd
/etc/ldap/slapd.conf
The PASSWD backend to slapd(8) serves up the user account information listed in the system passwd(5) file. This backend is provided for demonstration purposes only. The DN of each entry is "uid=<username>,<suffix>". Note that non-base searches scan the entire passwd file, and are best suited for hosts with small passwd files.
This slapd.conf option applies to the PASSWD backend database. That is, it must follow a "database passwd" line and come before any subsequent "backend" or "database" lines. Other database options are described in the slapd.conf(5) manual page.
file <filename>
Specifies an alternate passwd file to use. The default is /etc/passwd.
The passwd backend does not honor any of the access control semantics described in slapd.access(5). Only read (=r) access to the entry pseudo-attribute and to the other attribute values of the entries returned by the search operation is honored, which is performed by the frontend.
/etc/ldap/slapd.conf
default slapd configuration file
/etc/passwd
user account information