DDNS not updating host

[Steven Carr]

When the DHCP server queries DNS for the TXT record for the client
which is wanting to update it can't find the TXT record or the data in
the TXT record does not match anything that the DHCP server has added.

Try deleting the TXT record for the client and then see if it can
update. If that fixes the issue then you need to work out why DHCP
isn't automatically removing the added records when the lease expires.

Steve



On 10 February 2013 08:39,  <arun.sasi1 at wipro.com> wrote:
> Hello Team,
>
> I have DDNS configured in my isc-dhcp server. some of laptops are not
> updating with their new Ip address to the DNS server.
>
> I get below error message from DHCP and DNS
>
> DHCP
>
> Feb 10 09:32:02 sd5embinf01 dhcpd: DHCPOFFER on 163.183.40.116 to
> 48:5b:39:83:23:ef (OAal-SD05) via 163.183.43.4
> Feb 10 09:32:02 sd5embinf01 dhcpd: Forward map from OAal-SD05.emb.bsl.com to
> 163.183.40.116 FAILED: Has an A record but no DHCID, not mine.
> Feb 10 09:32:02 sd5embinf01 dhcpd: DHCPREQUEST for 163.183.40.116
> (163.183.243.133) from 48:5b:39:83:23:ef (OAal-SD05) via 163.183.43.1
> Feb 10 09:32:02 sd5embinf01 dhcpd: DHCPACK on 163.183.40.116 to
> 48:5b:39:83:23:ef (OAal-SD05) via 163.183.43.1
> Feb 10 09:32:03 sd5embinf01 dhcpd: Forward map from OAal-SD05.emb.bsl.com to
> 163.183.40.116 FAILED: Has an A record but no DHCID, not mine.
>
> In DNS
> Feb 10 06:31:44 gb02embns01 named[16046]: client 163.183.243.131#44006:
> updating zone 'emb.bsl.com/IN': update unsuccessful: OAal-SD05.emb.bsl.com:
> 'name not in use' prerequisite not satisfied (YXDOMAIN)
> Feb 10 06:31:44 gb02embns01 named[16046]: client 163.183.243.131#51487:
> updating zone 'emb.bsl.com/IN': update unsuccessful:
> OAal-SD05.emb.bsl.com/TXT: 'RRset exists (value dependent)' prerequisite not
> satisfied (NXRRSET)
> Feb 10 06:31:45 gb02embns01 named[16046]: client 163.183.243.131#53081:
> updating zone 'emb.bsl.com/IN': update unsuccessful: OAal-SD05.emb.bsl.com:
> 'name not in use' prerequisite not satisfied (YXDOMAIN)
> Feb 10 06:31:45 gb02embns01 named[16046]: client 163.183.243.131#59861:
> updating zone 'emb.bsl.com/IN': update unsuccessful:
> OAal-SD05.emb.bsl.com/TXT: 'RRset exists (value dependent)' prerequisite not
> satisfied (NXRRSET)
>
> Why this is happening, and what could be the reason for this.
>
>
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