Re: Website not available at gnuplot.info

As a workaround, you might use https://gnuplot.sourceforge.net/ instead (and https://gnuplot.sourceforge.net/docs_6.0/gnuplot6.html for documentation).

Gnuplot uses SourceForge. If you try
  gnuplot.sourceforge.net is an alias for projects.sourceforge.net.cdn.cloudflare.net.
  projects.sourceforge.net.cdn.cloudflare.net has address 104.18.37.111
  projects.sourceforge.net.cdn.cloudflare.net has address 172.64.150.145
  projects.sourceforge.net.cdn.cloudflare.net has IPv6 address 2606:4700:4400::6812:256f
  projects.sourceforge.net.cdn.cloudflare.net has IPv6 address 2606:4700:4400::ac40:9691
... those IPv6 addresses might look familiar.

What CloudFlare describes from your link:
> A non-Cloudflare domain cannot CNAME to a Cloudflare domain unless the non-Cloudflare domain is added to a Cloudflare account.
... is (approximately) what's happening, although without exactly using a CNAME. It was working at some point, so I guess CF has now changed it so it no longer does. We don't have the ability to add gnuplot.info to SourceForge's CF account, so we may need to get a hold of Clark again.

People (including me) using IPv4 instead of IPv6 probably won't see this error, because gnuplot.info's IPv4 address points to SourceForge directly (204.68.111.101), not Cloudflare. But if -- hypothetically -- gnuplot.info did point to the projects.sourceforge.net.cdn.cloudflare.net v4 address, it would also generate the 1001 error.

And I get the same 1001 error over IPv6 that Aleksandr sees.



Aleksandr Dinu <[email protected]> said (on 2024/10/12):
> Hello gnuplot community,
> 
> There's indeed a problem with website availability at gnuplot.info, however it might not be strictly DNS problem, but rather some Cloudflare misconfiguration.
> ...
> <
> * Closing connectionerror code: 1001
> 
> ... https://developers.cloudflare.com/support/troubleshooting/cloudflare-errors/troubleshooting-cloudflare-1xxx-errors/#error-1001-dns-resolution-error.
> ...


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