passwd:     files nis
shadow:     files nis
group:      files nis
hosts:      files dns
bootparams: nisplus [NOTFOUND=return] files

ethers:     files
netmasks:   files
networks:   files
protocols:  files
rpc:        files
services:   files

netgroup:   files

publickey:  nisplus

automount:  files
aliases:    files nisplus

sudoers:  files ldap