How to Set FQDN in DHCPD for DDNS

Hi,

I'm playing around with setting up DHCP and DDNS on my Slack 9 system
and having a problem with one of the devices, a print server, in my
network. Other devices, and my laptop, appear to work correctly.

The symptoms are that DHCP only uses the client-hostname when sending
requests to Bind, but only for this print server. For the other
device it sends a FQDN. Neither of the devices have any options that
allow me to specify a Domain name in their setup, so it doesn'y come
from there.

Here's the relevent sections from the DHCPD log (FLASHBOY is the print
server, cd3o-... is a networked mp3 player):

DHCPDISCOVER from 00:c0:02:38:52:31 (FLASHBOY) via eth0
DHCPOFFER on 192.168.0.216 to 00:c0:02:38:52:31 via eth0
if IN A FLASHBOY domain doesn't exist add 30 IN A FLASHBOY
192.168.0.216 add 30
IN TXT FLASHBOY "0026953e1adbbcf2440cca012cea73a0e8": timed out.
DHCPREQUEST for 192.168.0.216 (192.168.0.4) from 00:c0:02:38:52:31 via
eth0
DHCPACK on 192.168.0.216 to 00:c0:02:38:52:31 (FLASHBOY) via eth0

DHCPDISCOVER from 00:90:4b:23:79:a2 (cd3o-23-79-a2) via eth0
DHCPOFFER on 192.168.0.217 to 00:90:4b:23:79:a2 (cd3o-23-79-a2) via
eth0
if IN A cd3o-23-79-a2.BogoLinux.net domain doesn't exist add 30 IN A
cd3o-23-79-a2.BogoLinux.net 192.168.0.217 add 30 IN TXT
cd3o-23-79-a2.BogoLinux.net "3193e9c2e86d45961f708c4e86958310db":
success.
delete IN PTR 217.0.168.192.in-addr.arpa. add 30 IN PTR
217.0.168.192.in-addr.arpa. cd3o-23-79-a2.BogoLinux.net: success.
DHCPREQUEST for 192.168.0.217 (192.168.0.4) from 00:90:4b:23:79:a2
(cd3o-23-79-a2) via eth0
DHCPACK on 192.168.0.217 to 00:90:4b:23:79:a2 (cd3o-23-79-a2) via eth0

As you can see, both of the DHCPDISCOVERs only come in with a
client-name. But when it comes to send the request to Bind, only one
of them gets the Domain Name added.

Now, here's the relevant portions of the leases file:

lease 192.168.0.216 {
starts 3 2003/08/20 20:45:38;
ends 3 2003/08/20 20:46:38;
tstp 3 2003/08/20 20:46:38;
binding state free;
hardware ethernet 00:c0:02:38:52:31;
client-hostname "FLASHBOY";
}
lease 192.168.0.216 {
starts 3 2003/08/20 20:59:20;
ends 3 2003/08/20 21:00:20;
binding state active;
next binding state free;
hardware ethernet 00:c0:02:38:52:31;
client-hostname "FLASHBOY";
}
lease 192.168.0.216 {
starts 3 2003/08/20 20:59:20;
ends 3 2003/08/20 21:00:20;
tstp 3 2003/08/20 21:00:20;
binding state free;
hardware ethernet 00:c0:02:38:52:31;
client-hostname "FLASHBOY";
}

lease 192.168.0.217 {
starts 3 2003/08/20 20:38:44;
ends 3 2003/08/20 20:39:44;
tstp 3 2003/08/20 20:39:44;
binding state free;
hardware ethernet 00:90:4b:23:79:a2;
uid "\001\000\220K#y\242";
client-hostname "cd3o-23-79-a2";
}
lease 192.168.0.217 {
starts 3 2003/08/20 21:05:47;
ends 3 2003/08/20 21:06:47;
binding state active;
next binding state free;
hardware ethernet 00:90:4b:23:79:a2;
uid "\001\000\220K#y\242";
set ddns-rev-name = "217.0.168.192.in-addr.arpa.";
set ddns-txt = "3193e9c2e86d45961f708c4e86958310db";
set ddns-fwd-name = "cd3o-23-79-a2.BogoLinux.net";
client-hostname "cd3o-23-79-a2";
}
lease 192.168.0.217 {
starts 3 2003/08/20 21:05:47;
ends 3 2003/08/20 21:06:47;
tstp 3 2003/08/20 21:06:47;
binding state free;
hardware ethernet 00:90:4b:23:79:a2;
uid "\001\000\220K#y\242";
client-hostname "cd3o-23-79-a2";
}

The only difference that I can see, before the request comes in, is
that the device that works has a "uid" assigned. (BTW. What is that
??).

In both case I switched them back to static IPs immediately after they
grabbed the lease.

Here's my dhcpd.conf file:

# dhcpd.conf
#
# Configuration file for ISC dhcpd (see 'man dhcpd.conf')
#

# option definitions common to all supported networks...
authoritative;
ddns-update-style interim;

option domain-name "BogoLinux.net";
option domain-name-servers The-Tardis.BogoLinux.net;
option subnet-mask 255.255.255.0;
option broadcast-address 192.168.0.255;
option routers The-Tardis.BogoLinux.net;

default-lease-time 60;
max-lease-time 720;

key BogoLinux.net {
algorithm hmac-md5;
secret "There is a key here, really";
}

subnet 192.168.0.0 netmask 255.255.255.0 {
range 192.168.0.201 192.168.0.220;
}

zone bogolinux.net. {
key BogoLinux.net;
}

zone 0.168.192.in-addr.arpa. {
key BogoLinux.net;
}

I tried adding a "ddns-domainname BogoLinux.net;" directive to my
dhcpd.conf file, but that had no effect.

Thoughts ??

Cheers.