DHCPD-3 not adding DNS entries for Linux clients

mobiusNZ · 03-10-2007, 05:55 PM

Hi there,

After a *lot* of following tutorials, reading man pages and all the other carry-on, I managed to get DHCP and DNS to play together on my Debian(sarge) server. That is, when a client pc on the network requests an IP address, DHCP3 adds it to DNS using RNDC.

Trouble is, this only appears to work for WinXP clients, and not my Kubuntu(edgy) client. In fact, when I booted that client into windows my server added the entry correctly, but when I rebooted into Kubuntu, it deleted the DNS entry, assigned a different IP address, and left it at that (didn't add a new DNS entry).

I'm not even 100% sure if this is a server issue or a client issue. Does anyone have any ideas?

vargadanis · 03-11-2007, 08:14 PM

Did you add the

Quote:

option domain-name-servers 40.175.42.254, 40.175.42.253;

line to the config file?

http://yolinux.com/TUTORIALS/DHCP-Server.html
this is quite a good thing

mobiusNZ · 03-11-2007, 08:47 PM

Yes I do have that. This is my whole dhcpd.conf

Code:

server-name	sarge;
# The ddns-updates-style parameter controls whether or not the server will
# attempt to do a DNS update when a lease is confirmed. We default to the
# behavior of the version 2 packages ('none', since DHCP v2 didn't
# have support for DDNS.)
ddns-update-style 	interim;
ddns-domainname		"hol.net.local.";

# option definitions common to all supported networks...
option domain-name "hol.net.local";
option domain-name-servers ns.hol.net.local, 203.96.152.4, 203.96.152.12;

default-lease-time 600;
max-lease-time 7200;

# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.
authoritative;

key "rndc-key" {
	algorithm hmac-md5;
	secret "[--REMOVED--]";
};


zone hol.net.local. {
	primary 127.0.0.1;
	key "rndc-key";
}

subnet 192.168.1.0 netmask 255.255.255.0 {
	range	 			192.168.1.100 192.168.1.150;
	option subnet-mask 		255.255.255.0;
	option broadcast-address 	192.168.1.255;
	option domain-name 		"hol.net.local";
	one-lease-per-client 		on;
	default-lease-time 		14400;
	max-lease-time			14400;
	option ip-forwarding 		off;
	option routers 			192.168.1.1;
	deny 				duplicates;
}
zone 1.168.192.in-addr.arpa. {
	primary 127.0.0.1;
	key	"rndc-key";
}

As I said before, this works perfectly with XP clients using this dhcp server, but not my Kubuntu client.