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 35FAA138359 for ; Sat, 1 Aug 2020 19:47:51 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 3EFFCE080E; Sat, 1 Aug 2020 19:47:46 +0000 (UTC) Received: from smtp.hosts.co.uk (smtp.hosts.co.uk [85.233.160.19]) (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 F3DC3E0636 for ; Sat, 1 Aug 2020 19:47:45 +0000 (UTC) Received: from host86-157-100-178.range86-157.btcentralplus.com ([86.157.100.178] helo=[192.168.1.65]) by smtp.hosts.co.uk with esmtpa (Exim) (envelope-from ) id 1k1xTr-000ARz-Fg for gentoo-user@lists.gentoo.org; Sat, 01 Aug 2020 20:47:44 +0100 Subject: Re: [gentoo-user] Re: Local mail server To: gentoo-user@lists.gentoo.org References: <1831008.PYKUYFuaPT@peak> <5F212A7A.4020605@youngman.org.uk> <2550238.mvXUDI8C0e@peak> From: antlists Message-ID: Date: Sat, 1 Aug 2020 20:47:43 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 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 X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 8bit X-Archives-Salt: a23a93e6-4f28-4969-ae4b-c038a72bf24a X-Archives-Hash: 9b61fb6d5beecaa4195bba12efb68b85 On 01/08/2020 19:48, Grant Taylor wrote: > On 7/31/20 2:05 PM, Grant Edwards wrote: >> Nit: DHCPv6 can be (and usually is) dynamic, but it doesn't have to >> be. It's entirely possible to have a static IP address that your OS >> (or firewall/router) acquires via DHCPv6 (or v4).  [I set up stuff >> like that all the time.] > > Counter Nit:  That's still acquiring an address via /Dynamic/ Host > Configuration Protocol (v6).  It /is/ a /dynamic/ process. > > Static IP address has some very specific meaning when it comes to > configuring TCP/IP stacks.  Specifically that you enter the address to > be used, and it doesn't change until someone changes it in the > configuration. > > Either an IP address is statically entered -or- it's dynamic. > > The fact that it's returning the same, possibly predictable, address is > independent of the fact that it's a /dynamic/ process. > Counter counter nit: You may be *acquiring* it dynamically, but you can enter the address to be used into DHCP, and then it doesn't change until someone changes it in the configuration. That was my IPv4 in the Demon days - DHCP was *guaranteed* to *always* return the same address. So either I retrieved it via DHCP from Demon, or I hard coded it into my computer, it didn't matter. Cheers, Wol