11/29   'nslookup <hostname>' and 'ypmatch <hostname> hosts' return the
        same thing. Are they using different mechanisms? How are they
        sync'ed?
        \_ one uses dns, the other yp.  odds are your yp server falls through
           to dns for hosts.     If not, they are synchrnoized either through
           scripts or sysadmin-vigilance.
        \_ yes. nswitch.conf.
        \_ This means that your NIS/YP server has DNS lookups enabled.
           When it does not find a host in its NIS hosts maps it goes and
           queries DNS server before giving up.