Problem with a certain domain

[Greg Choules]

Hi Thomas.
Firstly, I doubt you actually need to kill and restart `named`. Flushing
the cache would probably work, either all of it or just selected names.

Secondly, take a packet capture of this happening and analyse what BIND is
really doing, in Wireshark.
- If it shows up that certain NS are causing the problem you can avoid
them, in config.
- If it's a DNSSEC issue, you can get around that on a per-domain basis, if
needed.
- If it turns out that qname minimization is the issue, you can play with
settings for that, too.

In short, there are plenty of tools in the kit bag. But understand what the
problem is first and to do that, gather data (pcaps and logs) that can be
used to paint a picture of what's really happening.

Cheers, Greg

On Tue, 4 Jun 2024 at 13:01, Thomas Barth via bind-users <
bind-users at lists.isc.org> wrote:

> Am 2024-06-04 09:50, schrieb Matus UHLAR - fantomas:
> > On 03.06.24 18:46, Thomas Barth via bind-users wrote:
> >> Should I perhaps ask the mail user to unsubscribe from this website
> >> due to troubles of bad configuration?
> >
> >
> > yeah I guess you should, their DNS servers are pretty much messed up:
>
> A temporary solution :-)
>
> /etc/postfix/access-sender
> newsletter.mallorcazeitung.es 550 Please configure your ns correctly
> [...]
>
> So, what I still don't understand is why it works on one server and not
> on the other. And this depends on which network the server is on? Bind
> is configured the same on all my servers. Shouldn't Bind then be
> confronted with the problem on all servers? How do I get a really
> uniform configuration?
>
>
>
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