Prerequisites for the NIS-to-LDAP Transition
Before implementing the N2L service, you must check or complete the following items.
Make sure that the system is set up as a working traditional NIS server before running the inityp2l script to enable N2L mode.
Configure the LDAP directory server on your system.
Sun Java System Directory Server (formerly Sun ONE Directory Server) and compatible versions of directory servers offered by Sun Microsystems, Inc., are supported with the NIS-to-LDAP migration tools. If you use Sun Java System Directory Server, configure the server by using the idsconfig command before you set up the N2L service. For more information about idsconfig, see Chapter 11, Setting Up Sun Java System Directory Server With LDAP Clients (Tasks) and the idsconfig(1M) man page.
Other (third party) LDAP servers might work with the N2L service, but they are not supported by Sun. If you are using an LDAP server other than the Sun Java System Directory Server or compatible Sun servers, you must manually configure the server to support RFC 2307, or its successors', schemas before you set up the N2L service.
Make sure that the nsswitch.conf file lists files before nis for the lookup order, at least for the hosts and ipnodes entries.
Ensure that the addresses of the N2L master server and the LDAP server are present in the hosts or ipnodes files on the N2L master server. Whether the server addresses must be listed in hosts, ipnodes, or both files depends on how your system is configured to resolve local host names.
An alternative solution is to list the LDAP server address, not its host name, in ypserv. This means that the LDAP server address is listed in another place, so changing the address of either the LDAP server or the N2L master server requires additional file modifications.