error while update from dhcp
Simon Hobson
shobson0309 at colony.com
Wed Sep 22 08:05:38 UTC 2004
Kevin Darcy wrote:
> >Sep 21 13:48:15 voyager2 named[9212]: error processing update packet
>>(YXRRSET) id 60797 from [127.0.0.1].33370
>>Sep 21 13:48:15 voyager2 dhcpd: if IN A DIAL_NEUMAIR.sb-brixen.it rrset
>>doesn't exist add 175000 IN A DIAL_NEUMAIR.sb-brixen.it 10.1.2.11: RRset
> >already exists.
>It's not really an error; it's informational. Basically, what all of
>that cryptic stuff means is "I tried to add the name
>DIAL_NEUMAIR.sb-brixen.it to DNS, but it already existed".
Further to that, in the second entry we can see what the DHCP server
was attempting. The normal form of an update (from the ISC server at
least) is :
if <some record> doesn't exist add <some record>
Ie, there is a conditional update to avoid overwriting existing
records. Because the record already exists, the condition fails, and
so the update is not performed and the first line above is logged.
Normally, the dhcp server will manage it's 'own' dns records. A
common issue is where someone switches from static addressing to
dynamic with dns updates - you already have entries for the hosts and
so the test above fails until the admin manually removes the original
dns entries.
Simon
--
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Simon Hobson MA MIEE, Technology Specialist
Colony Gift Corporation Limited
Lindal in Furness, Ulverston, Cumbria, LA12 0LD
Tel 01229 461100, Fax 01229 461101
Registered in England No. 1499611
Regd. Office : 100 New Bridge Street, London, EC4V 6JA.
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