Novell LINUX ENTERPRISE SERVER 11 - SECURITY Manual page 120

To run slapd as root, edit /etc/sysconfig/openldap. Disable the
OPENLDAP_USER and OPENLDAP_GROUP variables by putting a comment character
in front of them.
To make the keytab file readable by group LDAP, execute
chgrp ldap /etc/krb5.keytab
chmod 640 /etc/krb5.keytab
A third, and maybe the best solution, is to tell OpenLDAP to use a special keytab file.
To do this, start kadmin, and enter the following command after you have added the
principal ldap/ldap.example.com:
ktadd -k /etc/openldap/ldap.keytab ldap/ldap.example.com@EXAMPLE.COM
Then, on the shell, run:
chown ldap.ldap /etc/openldap/ldap.keytab
chmod 600 /etc/openldap/ldap.keytab
To tell OpenLDAP to use a different keytab file, change the following variable in
/etc/sysconfig/openldap:
OPENLDAP_KRB5_KEYTAB="/etc/openldap/ldap.keytab"
Finally, restart the LDAP server using rcldap restart.
Using Kerberos Authentication with LDAP
You should now be able to use tools, such as ldapsearch, with Kerberos authentication
automatically.
ldapsearch -b ou=people,dc=example,dc=com '(uid=newbie)'
SASL/GSSAPI authentication started
SASL SSF: 56
SASL installing layers
[...]
# newbie, people, example.com
dn: uid=newbie,ou=people,dc=example,dc=com
uid: newbie
cn: Olaf Kirch
[...]
106 Security Guide