Hi Carsten,
On Tue, Oct 4, 2022 at 13:06:27 +0200, Carsten Otto wrote:
> Dear all,
>
> On Fri, Sep 30, 2022 at 06:49:48PM +0200, Carsten Otto wrote:
> > I escalated this to the university staff managing DNS for
> > rwth-aachen.de.
>
> Bernd Kohler of RWTH Aachen university investigated and found something
> interesting.
>
> The CNAME ftp2.de.debian.org -> ftp.halifax.rwth-aachen.de resolves for
> public DNS servers like 8.8.8.8, but it does not resolve for those used
> by Debian.
>
> date -R; for i in "82.195.75.105" "2001:41b8:202:deb:1a1a:0:52c3:4b69"
> "209.87.16.31" "2607:f8f0:614:1::1274:31" "194.177.211.201"
> "2001:648:2ffc:deb::211:201"; do for j in "a" "aaaa"; do dig +noall +answer
> @${i} ftp2.de.debian.org ${j}; done; echo -e "\n#######################\n";
> done
>
> Maybe this is related to the issues you are seeing?
>
These aren't the IP addresses of the debian.org name servers, they serve
the www.debian.org zone only.
Cheers,
Julien