[Ntp] Antw: [EXT] NTP version 1 requests

Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de> Tue, 23 June 2020 12:15 UTC

Return-Path: <Ulrich.Windl@rz.uni-regensburg.de>
X-Original-To: ntp@ietfa.amsl.com
Delivered-To: ntp@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 239153A0DD9 for <ntp@ietfa.amsl.com>; Tue, 23 Jun 2020 05:15:22 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.899
X-Spam-Level:
X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ruYeGfMK9tsN for <ntp@ietfa.amsl.com>; Tue, 23 Jun 2020 05:15:20 -0700 (PDT)
Received: from mx3.uni-regensburg.de (mx3.uni-regensburg.de [IPv6:2001:638:a05:137:165:0:4:4e79]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 64E8E3A0DBF for <ntp@ietf.org>; Tue, 23 Jun 2020 05:15:20 -0700 (PDT)
Received: from mx3.uni-regensburg.de (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id E4DEE6000056 for <ntp@ietf.org>; Tue, 23 Jun 2020 14:15:16 +0200 (CEST)
Received: from gwsmtp.uni-regensburg.de (gwsmtp1.uni-regensburg.de [132.199.5.51]) by mx3.uni-regensburg.de (Postfix) with ESMTP id A8D5A6000051 for <ntp@ietf.org>; Tue, 23 Jun 2020 14:15:16 +0200 (CEST)
Received: from uni-regensburg-smtp1-MTA by gwsmtp.uni-regensburg.de with Novell_GroupWise; Tue, 23 Jun 2020 14:15:16 +0200
Message-Id: <5EF1F254020000A100039B4E@gwsmtp.uni-regensburg.de>
X-Mailer: Novell GroupWise Internet Agent 18.2.1
Date: Tue, 23 Jun 2020 14:15:16 +0200
From: Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>
To: "ntp@ietf.org" <ntp@ietf.org>, Hal Murray <hmurray@megapathdsl.net>
References: <14625_1592849017_5EF0F279_14625_1005_1_20200622180317.E6E6240605C@ip-64-139-1-69.sjc.megapath.net>
In-Reply-To: <14625_1592849017_5EF0F279_14625_1005_1_20200622180317.E6E6240605C@ip-64-139-1-69.sjc.megapath.net>
Mime-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 8bit
Content-Disposition: inline
Archived-At: <https://mailarchive.ietf.org/arch/msg/ntp/Si3QDXh6nOhZVPPSFX2fXihtOdg>
Subject: [Ntp] Antw: [EXT] NTP version 1 requests
X-BeenThere: ntp@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: <ntp.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ntp>, <mailto:ntp-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ntp/>
List-Post: <mailto:ntp@ietf.org>
List-Help: <mailto:ntp-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ntp>, <mailto:ntp-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 23 Jun 2020 12:15:22 -0000

>>> Hal Murray <hmurray@megapathdsl.net> schrieb am 22.06.2020 um 20:03 in
Nachricht
<14625_1592849017_5EF0F279_14625_1005_1_20200622180317.E6E6240605C@ip-64-139-1-6
.sjc.megapath.net>:

> I have a couple of servers in the pool.  They get version 1 requests.
> 
> Does anybody know what software package and/or OS/distro they are coming 
> from?
> 
> 0.25% in San Francisco
> 0.025% in London

Maybe you servers should respond to version 1 packets with a data packet like
"HOW ARE YOU? PLEASE SEND A POSTCARD TO..." ;-)
Are these really NTP packets? I know some older HP printers used port 123 UDP
for some kind of auto-discovery?

> 
> 
> ‑‑ 
> These are my opinions.  I hate spam.
> 
> 
> 
> _______________________________________________
> ntp mailing list
> ntp@ietf.org 
> https://www.ietf.org/mailman/listinfo/ntp