dynamic dns errors in log?

[Kevin Darcy]

Read that "unapproved update" as "denied update". No update was made. It was
denied.

Why is this happening? Who knows? Why am I getting update requests over the
Internet for jeep.com and a whole bunch of other domains, some of which are
"dead" (domains purchased for marketing campaigns that finished years ago).
Win2K and some other braindead OS'es appear to pick domains essentially at
random and then try to make Dynamic Updates to them. Go figure...

Maybe we should put together a class action lawsuit against Microsoft _et_al_
for "negligent theft of resources". Or just report these incidents to the
FBI as suspected cracking attempts.


- Kevin

Q wrote:

> I have several of these in my logs:
>
> Feb 19 20:55:59 ns1 named[789]: unapproved update from [209.x.x.x].4924 for
> MYDOMAIN.COM
>
> Then later on I have several of these:
>
> Feb 20 20:53:35 ns1 named[819]: denied update from [206.x.x.x].4251 for
> "MYDOMAIN.COM"
>
> Is someone trying to use dynamic DNS?  We are not offering dynamic DNS, and
> I have not set up any options for it in the named.conf file.  I didn't think
> it was enabled by default, but I may be wrong.  Is there anything I should
> be worried about here?