File README.SUSE of Package pam_ldap

To use the pam_ldap module, you need to do the following:

If you use the default SUSE Linux PAM configuration, you only
need to edit /etc/security/pam_unix2.conf and add the "use_ldap"
option for account, auth and password management. If you configure
LDAP with YaST2, YaST2 will do this for you.

Else edit all the /etc/pam.d configurations file to use the pam_ldap
module. Look in /usr/share/doc/packages/pam_ldap for examples.

If you don't have an /etc/ldap.conf file from another
packages, copy /usr/share/doc/packages/pam_ldap/ldap.conf into the 
/etc/ directory and edit this configuration file.