From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 567DB139083 for ; Tue, 19 Dec 2017 18:22:14 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 00612E100C; Tue, 19 Dec 2017 18:22:09 +0000 (UTC) Received: from mail-yb0-x232.google.com (mail-yb0-x232.google.com [IPv6:2607:f8b0:4002:c09::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 92C13E0FE4 for ; Tue, 19 Dec 2017 18:22:08 +0000 (UTC) Received: by mail-yb0-x232.google.com with SMTP id 129so5112607ybe.5 for ; Tue, 19 Dec 2017 10:22:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=FSJxkzOfDcYs2J02MnwgnfgbSBBKdh/EqAWdF4ke3wQ=; b=SqZVSSOsEoQpc60iwiaKjY9vVejsA8AhpIZYAHIECfJl1P1wqdlwBQBdD9oIFyXGvI z7yTRR2Yh/tZCXKiMG2RH4sFSO5YmokvRxRsDgdUcauzZ9G2PsEBU5cNYEUZ1jgg64KP 1u9+pgg9Gf6HNw7OzRKrxREpM96mzKF8nypT4tvuL+bRldvoBdb5fUHNmBNyjLA6bxxq L7+lg0JnVyouLRiCOYyj14jVPFMJDtYTK0W6AXSLNmmOS3vqejJKE9VAb+jMfnBkBZ+Y Lb+9hJRDn1hUOzjpsss7xagPpg7zfx/7OcUmtufdtI2b8J3qqABkDC2rW4TVS1178e8b zJZA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=FSJxkzOfDcYs2J02MnwgnfgbSBBKdh/EqAWdF4ke3wQ=; b=UqMrsR4XP4LpCitRmoCV0283wZRMS/brtRQOEIpHRsNuJVxmL6gRWgyP5hZcTaLhgP D7jZIhp+2LvsDZPhY+AYBgpvbOLdapJJe5DrMnSw0q6HN8IcwXxnDmfklCVNfhOVX76u f/qsllo/qJYpdMrhtu7C7CiwUu48YTfwUNnhG9N6ZmvLU1iBilS0lZgU6jWR4uuFej2l iBq7C15gxAa9gidLJ2rBriOAWITnPXY6aXk1b4amGlLLCDiUqC6kyp7ZQmMOdtgbOgVK rsZiQ4k0pDs0xXHjEl1M1CQxo3l/XgJvZaEcMcvB5FUyr7eo0qA+wKpvO8Iz+++IaTcO bZKA== X-Gm-Message-State: AKGB3mKbitLW3f9F1uTdN61TOa97LyILg5xHy1xuXzT50W/SpfPyHCaz GsoniBmUgIisjkZmhmYFwq2qV4Y6Y5NkEhVhrps= X-Google-Smtp-Source: ACJfBov6HGq1GzT0A/fGzTCOHjtNaLrwb49TuW1YdsxGdr9a3vrbR+xHL7faE84J9HpC2eaiQPLbsZxFS0T0BsH91ig= X-Received: by 10.37.35.4 with SMTP id j4mr3466642ybj.105.1513707727039; Tue, 19 Dec 2017 10:22:07 -0800 (PST) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.13.224.71 with HTTP; Tue, 19 Dec 2017 10:22:05 -0800 (PST) In-Reply-To: References: <2410697.Nf28CZmUYN@peak> <9acb40cb-86cf-d5dc-e429-6f0f5fb06d36@gentoo.org> <5a96091d-ee40-ec9c-10c2-4a1417fddfe2@youngman.org.uk> <20171218202554.ih57o2si72q3jyxn@grusum.endjinn.de> From: R0b0t1 Date: Tue, 19 Dec 2017 12:22:05 -0600 Message-ID: Subject: Re: [gentoo-user] Choice of TLD for internal network To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset="UTF-8" X-Archives-Salt: f8f69e65-ce67-4ee3-8e03-c3196fd28834 X-Archives-Hash: 143c9797ec22c3c1263b497eeb68439c On Tue, Dec 19, 2017 at 11:58 AM, Michael Orlitzky wrote: > On 12/19/2017 12:22 PM, R0b0t1 wrote: >> >> There are; .local and .localhost are reserved TLDs. > > > .local is reserved for Apple's multicast DNS stuff, which requires names > to be resolved via a nonstandard method: > > Any DNS query for a name ending with ".local." MUST be sent to the > mDNS IPv4 link-local multicast address 224.0.0.251 (or its IPv6 > equivalent FF02::FB). > > Therefore anything that supports RFC 6762 will break if you name your > domain ".local". Likewise, .localhost is reserved by RFC 6761 which says > The "MUST" is contingent on whether or not you want to follow RFC 6762. .local is reserved regardless. > Users may assume that IPv4 and IPv6 address queries for localhost > names will always resolve to the respective IP loopback address. > > ... > > Caching DNS servers SHOULD recognize localhost names as special > and SHOULD NOT attempt to look up NS records for them, or > otherwise query authoritative DNS servers in an attempt to > resolve localhost names. > > In other words, anything that supports RFC 6761 will break if you name > your domain ".localhost". > Most of these RFCs are talking about internet infrastructure that is not run by people of lowly and unimportant stature as myself. So I interpret "authoritative" to mean "external to my intranet." This contradicts the sentence above it. Such inconsistency can only be expected of Russians, so I view the standards body as compromized and morally bankrupt. As it is .localhost has strange connotations so I would prefer .local. If you need something else and mDNS doesn't work, .localdomain will probably remain usable for the reasons I gave. Cheers, R0b0t1