From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 9840 invoked from network); 12 Mar 2021 03:27:58 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 12 Mar 2021 03:27:58 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 5D0709C8E5; Fri, 12 Mar 2021 13:27:55 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 99D8C9C653; Fri, 12 Mar 2021 13:27:29 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=algebras-org.20150623.gappssmtp.com header.i=@algebras-org.20150623.gappssmtp.com header.b="AhihTsE9"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 460BC9C653; Fri, 12 Mar 2021 13:27:26 +1000 (AEST) Received: from mail-lf1-f52.google.com (mail-lf1-f52.google.com [209.85.167.52]) by minnie.tuhs.org (Postfix) with ESMTPS id 30CA29C2E5 for ; Fri, 12 Mar 2021 13:27:25 +1000 (AEST) Received: by mail-lf1-f52.google.com with SMTP id x4so36703146lfu.7 for ; Thu, 11 Mar 2021 19:27:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=algebras-org.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=teevLJQflog3VTqCu8gddAJjMjCdcONWDuFmabwGz8M=; b=AhihTsE9rebOJ3g9o74KNG1KhmSQlMJ+I66xEZiqs1BeRT5mOtRcwkCjuvbWMA41lK 2H9Pw0xQuzslJL//GDX3MJVYO3InJUXT1G8bn91RYERLuPxD1vCEDd4Ga+eDOolk+3Q0 EQnJwqrV/McsN2PtyOlH9AMYWcWbTL5SdULcxAPV/VUAWShBZ8wGHau5sm9+magKDMV5 9WWs3ijQyUv3COV7gsiK5KHAyjac+6bKAeX19wKpifjHcrYIlRocdq3wvr8Fce0kHnz/ OC41luCGx+Hfwp/NuEdXrNxF8azHUx5tLX5jp92k/Xm7r7sw4DCnTVVL2zIwldlsNAHl tsBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=teevLJQflog3VTqCu8gddAJjMjCdcONWDuFmabwGz8M=; b=eqOVu6CKBYJc2XULTKkrMV7lDItnQfAqOSWmeCZXmfYx9CF0pCzfs9fiXaOg+aLPJd el53je3Wgp9kQXb/bWYNMSH6r824cwt3vA268Js7crzzvjOBKdbqzYcItVCg59iNz8oI /U1D9DGhYGviaqcCf0iQ0YgsXNvpz/H1svv8aFlSqe8zAVxalxIKYc9AMizflgaNq4Tp G9FT0Yc+dTlNCBEBXLPvqHtG+sKya47jdxSUYyDH9Ed9P7oYJ5eNvugzUr08v9IwtXJE TeZ4mJDpi1HCMunnGtvAwdJFefrVFY2vgw1jIWWlaGykeQEKuuhvAeoWeAM6gsUC1C/7 TRtA== X-Gm-Message-State: AOAM531CIEyMS2IlEUK/AayyYyl37pzoYQ7UjsC9pVu0sKUNYxJ+9io8 5E+TwAmviIZnsRG9khUfFdEtDEI93DzCcGgQc8fccQ== X-Google-Smtp-Source: ABdhPJybBL+Pt7hTXAcNgF64KDBZWKkqzBcE7nhH0pzu/ZwiXJukcGc6uHuijmuDNAPCIqPBg2xYJxu/yHNtHtl5Qyw= X-Received: by 2002:a19:520b:: with SMTP id m11mr4007559lfb.42.1615519643378; Thu, 11 Mar 2021 19:27:23 -0800 (PST) MIME-Version: 1.0 References: <20210311200558.GW3990@netmeister.org> In-Reply-To: From: George Michaelson Date: Fri, 12 Mar 2021 13:27:12 +1000 Message-ID: To: "Jeremy C. Reed" Content-Type: text/plain; charset="UTF-8" Subject: Re: [TUHS] [COFF] Pondering the hosts file X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: TUHS main list , Internet History Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Funny story about /etc/hosts. and HOSTS.TXT. It was SRI NIC or NIC DDN/MIL's job to maintain and distribute. Centrex model to keep the numbers up, and hostnames aligned. We did shell ftp fetches and local distribution. Yellow pages was a godsend in mant ways, the operations duty cycle to keep this stuff up to date was a bit of a PITA. Enter yourself in HOSTS.TXT. It was sorted. Often, Alpha. So people like BBN were up top. People like MIT were midway. UCL-CS was down low. Oh well. Good thing we don't do linear lookup.. Or it was sorted by IP. But, somehow no matter what sort, we were down the back. Some things basically seemed to to linear. And, as the host count rose, be it sorted by IP or sorted by name, hosts in UCL-CS seemed to be "bottom" for finding. Bottom in time sense. So: you try to telnet to a US node, (or FTP) -and it dies. BBN butterfly has LRUd you out. You get that fixed. That takes time too. Hopefully less often. Shame BBN was on a fixed price fixed term contract and the EGP (pre BGP) was not patchable. Things come back eventually. You try to telnet to a node again. You get connected. Long pause. you get login: prompt. Long pause. You start typing login.. it drops link. Getty/login had a 30 second timer. We were sitting on 29-31 seconds lookup delay to resolve the client IP, to assert the login prompt. Sucked to be us. -G