The LDAP Migration Tools are a collection of Perl scripts provided by PADL Software Ltd. They are used to convert configuration files to the LDIF format. I recommend reading the license terms before using them, even being free. If you plan to use your LDAP server to authenticate users, this tools may be very useful. Use the Migration Tools to convert your NIS or password archives to the LDIF format, making these files compatible with your LDAP Server. Also apply these Perl scripts to migrate users, groups, aliases, hosts, netgroups, networks, protocols, RPCs and services from existing nameservices (NIS, flat files and NetInfo) to the LDIF format.
To download the LDAP Migration Tools and get more information, go to the following address: http://www.padl.com/tools.html .
The package comes with a README file and the name of the script files are intuitive. Take a first look on the README file and then start applying the scripts.
Another recommended URL with migration tools is: