From: Bob Proulx via rockbox <rockbox_at_cool.haxx.se>
Date: Fri, 18 Dec 2020 19:17:43 -0700

Bob Proulx wrote:
> But the rockbox.org nameservers do.

I also forgot to say that it is really www.shaftnet.org which is
important too.

    rwp_at_rainy:~$ wget -O/dev/null -q -S http://rockbox.org
      HTTP/1.1 301 Moved Permanently
      Date: Sat, 19 Dec 2020 02:08:01 GMT
      Server: Apache/2.4.46 (Fedora) OpenSSL/1.1.1g mod_perl/2.0.11 Perl/v5.30.3
    * Location: https://www.rockbox.org/
      Content-Length: 232
      Keep-Alive: timeout=5, max=100
      Connection: Keep-Alive
      Content-Type: text/html; charset=iso-8859-1
      HTTP/1.1 200 OK
      Date: Sat, 19 Dec 2020 02:08:01 GMT
      Server: Apache/2.4.46 (Fedora) OpenSSL/1.1.1g mod_perl/2.0.11 Perl/v5.30.3
      Accept-Ranges: bytes
      Vary: Accept-Encoding
      Keep-Alive: timeout=5, max=100
      Connection: Keep-Alive
      Transfer-Encoding: chunked
      Content-Type: text/html; charset=iso-8859-1

Anyone going to http://rockbox.org will get an HTTP redirect to
https://www.rockbox.org/. And www.rockbox.org is an alias to
www.shaftnet.org. Which is an alias to stuffed.shaftnet.org. Which
then has an adress record.

    rwp_at_rainy:~$ dig www.rockbox.org
    ...
    ;; ANSWER SECTION:
    www.rockbox.org. 6854 IN CNAME www.shaftnet.org.
    www.shaftnet.org. 6854 IN CNAME stuffed.shaftnet.org.
    stuffed.shaftnet.org. 6854 IN A 64.238.189.241
    ...

Or perhaps more simply.

    rwp_at_rainy:~$ host www.rockbox.org
    www.rockbox.org is an alias for www.shaftnet.org.
    www.shaftnet.org is an alias for stuffed.shaftnet.org.
    stuffed.shaftnet.org has address 64.238.189.241
    stuffed.shaftnet.org has IPv6 address 2001:470:4:754::2

And then DNS for www.shaftnet.org is involved. And we are back to the
information Michael Sparmann posted but for www.shaftnet.org this time.

    https://dnsviz.net/d/www.shaftnet.org/dnssec/

Odd that 'dig' did not return an IPv6 address for the query. 'host'
did, but looking deeper there it appears 'host' makes an additional
query specifically for it. 'dig' did not even when asked for it
explicitly.

    rwp_at_rainy:~$ dig -6 www.rockbox.org a +short
    www.shaftnet.org.
    stuffed.shaftnet.org.
    64.238.189.241

Bob


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Received on 2020-12-18