Dynamic DNS using DHCP howto..??

dshuff at hotmail.com dshuff at hotmail.com
Thu Jun 8 17:50:24 UTC 2000


I'm setting up our company's new DHCP and DNS servers using Linux.  We
would like to implement the Dynamic DNS update feature found in the
latest versions of ISC's server software.  I have DHCP and DNS running
but it will not allow the update to DNS when a client gets an IP address
from the DHCP server.  Is there a HOWTO or tutorial on how to set up the
update feature.??  That is, what options need to go into the dhcpd.conf
and named.conf files.  I've looked on ISC's site including their mailing
list archives but nothing that explains what you need to add to the
config files to get the update to work.

a little background...

I'm using RH 6.2 with ISC's bind-8.2.2_P5 and dhcp-3.0b1pl13 using the
--with-nsupdate compile time option.  Both the DNS and DHCP server
run on the same box (kedns1) and are located on our intranet.  Here is a
snippet from the log.......

kedns1 dhcpd: Internet Software Consortium DHCP Server V3.0b1pl13
kedns1 dhcpd: Copyright 1995, 1996, 1997, 1998, 1999 The Internet
Software Consortium.
kedns1 dhcpd: All rights reserved.
kedns1 dhcpd:  Please contribute if you find this software useful.
kedns1 dhcpd: For info, please visit
http://www.isc.org/dhcp-contrib.html
kedns1 dhcpd: Listening on LPF/eth0/00:60:08:20:57:7f/172.21.51.0
kedns1 dhcpd: Sending on   LPF/eth0/00:60:08:20:57:7f/172.21.51.0
kedns1 dhcpd: Sending on   Socket/fallback/fallback-net
kedns1 dhcpd: add failed: 14762.bgp.com 86400 IN A 172.21.51.101
kedns1 dhcpd: DHCPREQUEST for 172.21.51.101 from 00:a0:24:7c:28:3f via
eth0
kedns1 dhcpd: DHCPACK on 172.21.51.101 to 00:a0:24:7c:28:3f via eth0
kedns1 dhcpd: add failed: 14762.bgp.com 86400 IN A 172.21.51.101
kedns1 dhcpd: DHCPREQUEST for 172.21.51.101 from 00:a0:24:7c:28:3f via
eth0
kedns1 dhcpd: DHCPACK on 172.21.51.101 to 00:a0:24:7c:28:3f via eth0
kedns1 dhcpd: DHCPINFORM from 172.21.51.101 via eth0: not authoritative
for subnet 172.21.51.0
kedns1 dhcpd: fallback_discard: Connection refused
kedns1 dhcpd: DHCPINFORM from 172.21.51.101 via eth0: not authoritative
for subnet 172.21.51.0


any help would be greatly appreciated...

-Thanks,

donito



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