Re: gnuplot.info unreachable (DNS failure)

[Ethan A M. <me...@uw...>]

On Wed, Sep 10, 2025 at 5:53 AM Philipp K. Janert via gnuplot-beta <
gnu...@li...> wrote:

> On Tue, 09 Sep 2025 16:19:58 -0700
> Ethan A Merritt <me...@uw...> wrote:
>
>
> I don't want to be a stickler, but I don't
> think changing the docs from "gnuplot.info"
> to "www.gnuplot.info" is really the right
> way to think about it.


[shrug]  That's the only part of it I can do myself, and it takes effect
immediately.
The on-line docs now work again (as seen from here), whereas access was
failing yesterday. I hope someone else can arrange a more global long-term
fix
or at least identify what that fix would be.


> The domain/server should be configured to
> accept both versions and serve the appropriate
> content. That's pretty standard issue, in my
> experience.


To the limited extent that I understand the error messages that I am seeing,
it is not a matter of appropriate content on the server.  The query is never
getting to the server because some intermediate service provider is failing
to
deliver it.  If I am misunderstanding and there is some configuration thing
I
can change on the SourceForge end, please let me know.

   Ethan



Best,
>
>                 Ph.
>



> > On Tuesday, 9 September 2025 14:22:58 PDT Hans-Bernhard Bröker wrote:
> >
> > > Ethan can't link to gnuplot.info (note: no leading www.).
> >
> > Good point.  I typed the address into the browser directly because
> > Phillipp's reported error message was
> >    "Firefox does not trust this site because it uses a certificate
> > that is not valid for gnuplot.info"
> >
> > > [...] also fails, with a
> > > "DNS resolution error 1001"  reported by Cloudflare.
> > > Which is strange, as tracert did get an IP,  i.e. DNS actually
> > > works.
> >
> > Yes.  That's the one I'm seeing.  It's an internal error message from
> > Cloudflare that I get when I request either
> https://urldefense.com/v3/__http://gnuplot.info__;!!K-Hz7m0Vt54!hKklbxAh2wg2JWTINjAGHDtkHTSmzmPsg4w5G1Zu-N3BPWS_Fszt9uVqK6s9gOHUge9KIxOjuZdyCw6GT_4X1lxPgQ2mvA$
> or
> >
> https://urldefense.com/v3/__https://gnuplot.info__;!!K-Hz7m0Vt54!hKklbxAh2wg2JWTINjAGHDtkHTSmzmPsg4w5G1Zu-N3BPWS_Fszt9uVqK6s9gOHUge9KIxOjuZdyCw6GT_4X1lxK_p5wIQ$
> >
> > It does work if I request
> https://urldefense.com/v3/__http://www.gnuplot.info__;!!K-Hz7m0Vt54!hKklbxAh2wg2JWTINjAGHDtkHTSmzmPsg4w5G1Zu-N3BPWS_Fszt9uVqK6s9gOHUge9KIxOjuZdyCw6GT_4X1lxJY2e2hg$
>   (Chrome or
> > Firefox browsers).
> >
> > The hyperlink references in the pdf version of the user manual  use
> > the
> https://urldefense.com/v3/__http://www.gnuplot.info__;!!K-Hz7m0Vt54!hKklbxAh2wg2JWTINjAGHDtkHTSmzmPsg4w5G1Zu-N3BPWS_Fszt9uVqK6s9gOHUge9KIxOjuZdyCw6GT_4X1lxJY2e2hg$
> form.    But the html versions of the manual use
> > the gnuplot.info form [no www] everywhere.
> >
> > That much I can fix.
> > I will modify the gnuplot.doc inline html tables and the code in
> > doc2web.c to always generate output with the www prefix in the URL.
> >
> > However it is probably a common "mistake" for users to omit the www
> > prefix in web queries since that is no longer as near-universal as it
> > once was.  For that matter Chrome actively hides the "www." prefix
> > when it shows the current site in the bar at the top, so a
> > cut-and-paste may fail to capture the full, working, address.
> >
> >    Ethan
> >
> >
> >
> >
> >
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-- 
Ethan A Merritt
Department of Biochemistry
University of Washington, Seattle