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From: Eli Zaretskii <eliz@gnu.org>
To: Robert Pluim <rpluim@gmail.com>
Cc: rtt@dasyatidae.com, emacs-devel@gnu.org
Subject: Re: ai_flags in calls to getaddrinfo, broader call for reproducibility check
Date: Mon, 11 Jan 2021 22:46:23 +0200	[thread overview]
Message-ID: <83wnwjdwww.fsf@gnu.org> (raw)
In-Reply-To: <87ft374axc.fsf@gmail.com> (message from Robert Pluim on Mon, 11 Jan 2021 18:53:51 +0100)

> From: Robert Pluim <rpluim@gmail.com>
> Cc: Eli Zaretskii <eliz@gnu.org>,  emacs-devel@gnu.org
> Date: Mon, 11 Jan 2021 18:53:51 +0100
> 
> (require 'dns)
> (skip-unless (dns-query "google.com" 'AAAA))
> 
> and then do the network-lookup-address-info tests (although on Windows
> this depends on DNS over TCP working, and either /etc/resolv.conf or a
> working nslookup). Eli?

Tell me what to try, and I will show the results.  TIA.

> > Another perspective on above is that when you mention "behind firewalls up
> > the kazoo", what my intuition imagines is something like: corporate DNS
> > filtering which only allows specific request types and either was never
> > updated to think of AAAA queries as valid, or is operated in a way assuming
> > that users will never have a legitimate need for them (because they "won't
> > be able to use" the results), or does this as a workaround for some broken
> > behavior elsewhere (such as some other device used in the organization
> > which will prefer an IPv6 address response even when it's not reachable,
> > and fail to fall back to IPv4?) or... any number of things like that.
> >
> 
> Iʼd love to be able to persuade Eli's network admins to fix such
> things, but I only attempt things that have a reasonable chance of
> success (and such things are sometimes dependent on vendors rather
> than admins).

No danger of that succeeding in this case, forget it.  I had trouble
convincing them to let me access Git repositories via HTTPS, let alone
SSH.  Every non-standard port under the sun is blocked.  I cannot even
ping any address, have to use tcping instead.

Thanks.



  parent reply	other threads:[~2021-01-11 20:46 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-31 15:06 ai_flags in calls to getaddrinfo Eli Zaretskii
2020-12-31 22:40 ` Robin Tarsiger
2021-01-01  7:43   ` Eli Zaretskii
2021-01-01 11:40     ` Robin Tarsiger
2021-01-01 12:04       ` Robin Tarsiger
2021-01-01 12:48       ` Eli Zaretskii
2021-01-02  0:19         ` Robin Tarsiger
2021-01-03 16:00   ` Eli Zaretskii
2021-01-11 10:47     ` ai_flags in calls to getaddrinfo, broader call for reproducibility check Robin Tarsiger
2021-01-11 12:42       ` Robert Pluim
2021-01-11 15:25       ` Eli Zaretskii
2021-01-11 15:47         ` Robert Pluim
2021-01-11 16:44           ` Eli Zaretskii
2021-01-11 17:07             ` Robin Tarsiger
2021-01-11 17:53               ` Robert Pluim
2021-01-11 18:30                 ` Robin Tarsiger
2021-01-11 18:42                   ` Robert Pluim
2021-01-11 19:28                     ` Stefan Monnier
2021-01-11 20:12                       ` Robert Pluim
2021-01-11 20:41                         ` Eli Zaretskii
2021-01-11 20:55                           ` Stefan Monnier
2021-01-11 21:02                           ` Robert Pluim
2021-01-11 21:09                             ` Lars Ingebrigtsen
2021-01-11 21:15                               ` Robert Pluim
2021-01-11 22:42                                 ` Lars Ingebrigtsen
2021-01-12  9:40                                   ` Robert Pluim
2021-01-12 12:49                                     ` Lars Ingebrigtsen
2021-01-12 13:04                                       ` Robert Pluim
2021-01-12 14:08                                         ` Lars Ingebrigtsen
2021-01-12 14:29                                           ` Robert Pluim
2021-01-12 18:06                                             ` Lars Ingebrigtsen
2021-01-12 15:14                                       ` Stefan Monnier
2021-01-12 15:45                                         ` Eli Zaretskii
2021-01-12  3:29                             ` Eli Zaretskii
2021-01-11 20:46                 ` Eli Zaretskii [this message]
2021-01-11 20:56                   ` Robert Pluim
2021-01-12 15:01                     ` Eli Zaretskii
2021-01-12 15:36                       ` Robert Pluim
2021-01-12 15:42                       ` Eli Zaretskii
2021-01-12 16:00                         ` Robert Pluim
2021-01-12 16:05                           ` Eli Zaretskii
2021-01-12 17:56                             ` Robert Pluim
2021-01-11 19:32           ` Basil L. Contovounesios
2021-01-11 20:19             ` Robert Pluim
2021-01-11 23:57           ` Andy Moreton
2021-01-12  9:44             ` Robert Pluim
2021-01-12 11:56               ` tomas
2021-01-01 10:59 ` ai_flags in calls to getaddrinfo Lars Ingebrigtsen
2021-01-01 12:50   ` Eli Zaretskii
2021-01-02  5:40     ` Lars Ingebrigtsen

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