nsswitch.conf

["Linh Huynh" <linh@ehand.se>]

Hi,
in
http://www.redhat.com/support/manuals/RHL-6.2-Manual/ref-guide/s1-ldap-redha
ttips.html
is says:
To use nss_ldap, you'll need to add ldap to the appropriate fields in
/etc/nsswitch.conf. (Be very careful when editing this file; be sure that
you know what you're doing.) For example:

passwd: files ldap
shadow: files ldap
group: files ldap

but in my file there is:
passwd:     files nisplus nis
shadow:     files nisplus nis
group:      files nisplus nis

Should I just add "ldap" to each line? What more should I do with that file?
Is there a short answer to this or can someone point me somewhere to read
about it?

- Linh