Re: gnuplot.info unreachable (DNS failure)

[Philipp K. J. <ja...@ie...>]

On Tue, 09 Sep 2025 16:19:58 -0700
Ethan A Merritt <me...@uw...> wrote:

> On Tuesday, 9 September 2025 14:22:58 PDT Hans-Bernhard Bröker 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. 

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

Best,

		Ph.

> 
> > 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 http://gnuplot.info or
> https://gnuplot.info
> 
> It does work if I request http://www.gnuplot.info   (Chrome or
> Firefox browsers).
> 
> The hyperlink references in the pdf version of the user manual  use
> the www.gnuplot.info 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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