[NTLUG:Discuss] Dynamic DNS via DHCP snippet (assigning names when none requested)

[Chris Cox]

Here's a snippet from a dhcpd.conf file (I'll try to post an entire presentation
soon)... but here's something I left out of my file I had today (I really
meant to have this... sorry).  There's some really rough documentation
in the dhcp-eval man page that comes with dhcp 3.0...  but a lot more
documentation is needed IMHO.

#
# Assign a DNS name for clients who don't provide a
# host-name... the generated name is an ascii representation
# of their MAC address.
#
if exists host-name {
        log (debug, concat ("Supplied a hostname [", option host-name, "]"));
        ddns-hostname = option host-name;
} else {
        ddns-hostname = binary-to-ascii (16,
                                8,
                                "-",
                                substring (hardware, 1, 6));
        log (debug, concat ("Generating hostname [", ddns-hostname, "]"));
}