From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Robert Pluim Newsgroups: gmane.emacs.devel Subject: Re: Persistent failure to lookup hostname Date: Tue, 04 Oct 2022 11:30:08 +0200 Message-ID: <87pmf89brz.fsf@gmail.com> References: <87lepw4fyz.fsf@gnus.org> <87tu4k9gz2.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31948"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Oct 04 11:34:11 2022 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 1ofeJW-000838-7x for ged-emacs-devel@m.gmane-mx.org; Tue, 04 Oct 2022 11:34:10 +0200 Original-Received: from localhost ([::1]:44672 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ofeJU-0006Du-Pv for ged-emacs-devel@m.gmane-mx.org; Tue, 04 Oct 2022 05:34:08 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35510) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ofeFk-0003hl-Ge for emacs-devel@gnu.org; Tue, 04 Oct 2022 05:30:19 -0400 Original-Received: from mail-wm1-x32b.google.com ([2a00:1450:4864:20::32b]:53172) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ofeFg-0004gs-Gz for emacs-devel@gnu.org; Tue, 04 Oct 2022 05:30:16 -0400 Original-Received: by mail-wm1-x32b.google.com with SMTP id l8so8500822wmi.2 for ; Tue, 04 Oct 2022 02:30:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date :gmane-reply-to-list:references:in-reply-to:subject:cc:to:from:from :to:cc:subject:date:message-id:reply-to; bh=nOPYiANgI+9uNcBOofm7Zds96R6fdxRVmckOJipqv9U=; b=LouCdxF28k4ZVnUr8udtUwNHzYrxX8Cu2MzqgYD2s/JslBsJTbi98Dp5WK+LwVwpsa 6YgrchUfBC3YM30Wtdlv4JwGylJgwpYobvv52PatyUyAhKCngaWODVpAQne56XWeUAnF ocPM8/e83JLLWVuzH50o3hHlK1lVXbFeGZd7lAh4faXlTz4hJTzl/JK3SnvEzTMYzv8o NUJycdGXAf81ZRhwLlPDqdZakReL47C5epmEGIQ6lb70UDh6zqsz7s/OzmC4rJ5XrLHb c7gnCRNJTqJOseWipGZOBtZfOo5gmvXn/egKzHboKS/IieV9K+VBbsIl2J2RS2L49aiH HDgA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date :gmane-reply-to-list:references:in-reply-to:subject:cc:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=nOPYiANgI+9uNcBOofm7Zds96R6fdxRVmckOJipqv9U=; b=KsZcFpQMTtK7zMSpqBMtm+CsVwVeHmm8FtrmLZJJ1UePxGplNvIp4QOhPXqesekUD4 fsMl7lSIyjZ0G5r4vI4WXDmI+PMH4EN3DDIOAn8SNuWQ7V6uUHt6nkTQXuu14RMoCEea 3YZE/9K1rADXVoY95xHwChwmOzeb1WdBt+iDLWIgYqBDYchYgRFE+FUl7odkDQh6rARF LDtBcDekWUn0WceSJLAbvF3vcVwWigFHcD2vx11hGxJxJyXbSey8HlWxzSlSXOydx6EL OAs+cR4QjM6QkMsJoj2X5Twix+c7jlsyjmCtSFSN07L9L8tys3pbmfpFwvXEBysF8KNd 9+6Q== X-Gm-Message-State: ACrzQf3BMRAnuQCy0LGyjEMNOUQZ1KsfW4+4A1RXbfMY29X7UuQ8/4Uc dTWFRuDdylekq3yDZT0TbNTVdLdFUB4= X-Google-Smtp-Source: AMsMyM4GlSp9BRbJfufIwaTK2dYn1mS+4O+ax3BOgU5iE+ILfzk7dxqvF4BNTA+XBj+XVuKtV344yA== X-Received: by 2002:a05:600c:474c:b0:3b4:cbca:5677 with SMTP id w12-20020a05600c474c00b003b4cbca5677mr9156734wmo.76.1664875810075; Tue, 04 Oct 2022 02:30:10 -0700 (PDT) Original-Received: from rltb ([2a01:e0a:3f3:fb50:37f5:e4da:5e9c:64c1]) by smtp.gmail.com with ESMTPSA id l6-20020a5d5606000000b00228d52b935asm12413468wrv.71.2022.10.04.02.30.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Oct 2022 02:30:09 -0700 (PDT) In-Reply-To: (tomas@tuxteam.de's message of "Tue, 4 Oct 2022 10:05:29 +0200") Gmane-Reply-To-List: yes Received-SPF: pass client-ip=2a00:1450:4864:20::32b; envelope-from=rpluim@gmail.com; helo=mail-wm1-x32b.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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:296865 Archived-At: >>>>> On Tue, 4 Oct 2022 10:05:29 +0200, said: tomas> On Tue, Oct 04, 2022 at 09:37:53AM +0200, Robert Pluim wrote: >> sudo tcpdump -i any -n udp and port 53 tomas> "Out of Emacs" can mean different things :) tomas> E.g. if nscd is active, that's a caching layer somewhere at libc= level (so tomas> Emacs won't be aware of it, but the request won't hit the net, s= o tcpdump tomas> won't see it). Also, for the young-uns, systemd is said to do DN= S caching tomas> itself too (what doesn't it do?), but I can't test that due to l= ack of tomas> systemd ;-) That one, possibly, is also in limbo between Emacs a= nd what tomas> tcpdump can see (but also possibly, not). Yes, and then there is dnsmasq, and the upstream DSL 'router=CA=BC might be caching DNS, etc etc. Checking the network traffix just helps in finding out who to blame :-) Robert --=20