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Re: [gentoo-dev] strange problems with some gentoo sites as seen from Russia

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On Wed, May 14, 2025 at 01:48:37PM +0000, Andrey Grozin wrote:
> Hello *,
> 
> I have problems opening several sites
> 
> gentoo.org
> wiki.gentoo.org
> devmanual.gentoo.org
> (but not packages.gentoo.org, forums.gentoo.org)
As an A/B comparision, this is a good starting point.

What the sets have as a common difference is loading JS & CSS from
assets.gentoo.org.

From assets.g.o:
- Packages loads a single image.
- forums loads nothing.
- www, wiki, devmanual: loads bootstrap, jquery, CSS, fonts.

> from my gentoo notebook in Novosibirsk, Russia. All these sites have an
> excellent ping; the problem is only to access them via https. First I wait
> for several minutes; then either the browser (chrome) declares timeout, or
> the site opend, but without the top menu, the background picture below the
> menu. Instead I get the menu as a plain vertical list of lines, each line
> contains a link. These links work. But if I choose, e.g., the link Support,
> I again have to wait for many minutes for gentoo.org/support/ to load.
- Use Chrome devtools while loading one of the pages, and identify which
  requests are slow
- Copy that request from devtools "copy as curl"
- Repeat it in the shell
- Test if dropping headers etc changes the behavior.

The "excellent ping" comment stands out as odd - from Russia, I would
expect a poor ping to wiki.g.o and forums.go, because they are NOT on
the CDN.

All of the others are on CDN: assets, packages, devmanual, www

We use a mix of CDN77 & Fastly for Gentoo's CDN offering: diversity of
providers to avoid single point of failure where possible
[distfiles.g.o only available on CDN77, Fastly said it would be too much
traffic for that sponsorship agreement]

> This is clearly related to me being in Russia. When I go to the same sites
> from chrome on my android tablet, and this tablet is connected by vpn to a
> vps in Germany, everything works fast and without defects. Unfortunately, I
> have no client compatible with this vpn on my gentoo notebook.
Two theories:
- Russia/ISP is badly blocking a subset of CDN endpoint IPs, and since
  CDNs host a wide variety of services, this is collateral damage.
- The CDN provider is doing partial blocking of Russia [not to my
  knowledge, but I wouldn't rule it out, e.g. being ordered to block
  some Russian access]

-- 
Robin Hugh Johnson
Gentoo Linux: Dev, Infra Lead, Foundation Treasurer
E-Mail   : robbat2@gentoo.org
GnuPG FP : 11ACBA4F 4778E3F6 E4EDF38E B27B944E 34884E85
GnuPG FP : 7D0B3CEB E9B85B1F 825BCECF EE05E6F6 A48F6136

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Thread

[gentoo-dev] strange problems with some gentoo sites as seen from Russia Andrey Grozin <grozin@gentoo.org> - 2025-05-14 15:50 +0200
    Re: [gentoo-dev] strange problems with some gentoo sites as seen from Russia Andreas Sturmlechner <asturm@gentoo.org> - 2025-05-14 17:10 +0200
    Re: [gentoo-dev] strange problems with some gentoo sites as seen  from Russia Andrey Grozin <grozin@gentoo.org> - 2025-05-14 17:40 +0200
  Re: [gentoo-dev] strange problems with some gentoo sites as seen  from Russia "Robin H. Johnson" <robbat2@gentoo.org> - 2025-05-14 19:30 +0200
    Re: [gentoo-dev] strange problems with some gentoo sites as seen  from Russia Andrey Grozin <grozin@gentoo.org> - 2025-05-15 13:20 +0200
      Re: [gentoo-dev] strange problems with some gentoo sites as seen  from Russia Andrey Grozin <grozin@gentoo.org> - 2025-05-15 13:30 +0200
        [gentoo-dev] Re: strange problems with some gentoo sites as seen from Russia Duncan <1i5t5.duncan@cox.net> - 2025-05-17 07:10 +0200
    [gentoo-dev] Re: strange problems with some gentoo sites as seen from Russia Anna <cyber+gentoo@sysrq.in> - 2025-05-16 13:30 +0200
  Re: [gentoo-dev] strange problems with some gentoo sites as seen  from Russia Andrey Grozin <grozin@gentoo.org> - 2025-05-24 08:00 +0200

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