From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: ai_flags in calls to getaddrinfo, broader call for reproducibility check Date: Mon, 11 Jan 2021 22:46:23 +0200 Message-ID: <83wnwjdwww.fsf@gnu.org> References: <83sg7mggls.fsf@gnu.org> <83czymc8nq.fsf@gnu.org> <74b7a0a9-0eb3-7944-19d2-f72424ee72d7@dasyatidae.com> <83eeirfqbo.fsf@gnu.org> <87o8hvscfi.fsf@gmail.com> <8335z7fmnz.fsf@gnu.org> <87ft374axc.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3796"; mail-complaints-to="usenet@ciao.gmane.io" Cc: rtt@dasyatidae.com, emacs-devel@gnu.org To: Robert Pluim Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Jan 11 21:47:57 2021 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kz46W-0000su-NU for ged-emacs-devel@m.gmane-mx.org; Mon, 11 Jan 2021 21:47:56 +0100 Original-Received: from localhost ([::1]:50412 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kz46V-0004Je-LB for ged-emacs-devel@m.gmane-mx.org; Mon, 11 Jan 2021 15:47:55 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:42306) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kz44t-0003ff-6J for emacs-devel@gnu.org; Mon, 11 Jan 2021 15:46:15 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:44904) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kz44r-0003mS-SP; Mon, 11 Jan 2021 15:46:13 -0500 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:2140 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1kz44q-0001ry-Pi; Mon, 11 Jan 2021 15:46:13 -0500 In-Reply-To: <87ft374axc.fsf@gmail.com> (message from Robert Pluim on Mon, 11 Jan 2021 18:53:51 +0100) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:262934 Archived-At: > From: Robert Pluim > Cc: Eli Zaretskii , 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.