delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2005/03/31/03:47:26

Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Date: Thu, 31 Mar 2005 10:46:52 +0200
From: Andrzej Wisniewski <awisniewski AT axit DOT pl>
To: cygwin AT cygwin DOT com
Subject: ntpdate -q problem after daylight saving changes (v3.2 beta)
Message-ID: <20050331084652.GB24448@axit.pl>
Mime-Version: 1.0
User-Agent: Mutt/1.4.1i

Hello

I have installed a Cygwin ntpdate ver. 3.2 (beta) on Windows 2000
Server. There I have a problem after change time on our server with daylight
saving mechanism. I'm in GMT+01:00 zone and few days ago our clock was changed
from 02:00am to 03:00am o'clock. From this moment command :

ntpdate -q xx.xx.xx.22 

started to return wrong diff (3600sek) between local Windows server time
and our NTP server time. It seems like ntpdate -q try to compare windows +01h
time with basic NTP server time - without +01h (I have a ntp-4.1.2-0 on my Linux
server machine).

---
$ ntpdate -dq xx.xx.xx.22
server xx.xx.xx.22, port 123
stratum 3, precision -17, leap 00, trust 000
refid [xx.xx.xx.1], delay 0.0256, dispersion 0.0010
transmitted 4, in filter 4
reference time:      c5f62e83.de9fadaf  Thu, Mar 31 2005  9:08:35.869
originate timestamp: c5f62e97.e1815a07  Thu, Mar 31 2005  9:08:55.880
transmit timestamp:  c5f63ca7.000e0000  Thu, Mar 31 2005 10:08:55.000
filter delay:  0.0256   0.0256   0.0256   0.0256
               0.0000   0.0000   0.0000   0.0000
filter offset: -3599.12 -3599.12 -3599.11 -3599.11
               0.00000  0.00000  0.00000  0.00000
delay 0.0256, dispersion 0.0010
offset -3599.1213086

C:\cygwin\home\nagios\ntpdate: ntpdate version=3.2 (beta); Wed Sep  8
19:37:02
GMT 1993 (1)
transmit(xx.xx.xx.22)
receive(xx.xx.xx.22)
transmit(xx.xx.xx.22)
receive(xx.xx.xx.22)
transmit(xx.xx.xx.22)
receive(xx.xx.xx.22)
transmit(xx.xx.xx.22)
receive(xx.xx.xx.22)
transmit(xx.xx.xx.22)
C:\cygwin\home\nagios\ntpdate: step time server xx.xx.xx.22 offset
-3599.1213086
-------

I think that "transmit timestamp" should be a "originate timestamp"
value and then the problem would not be exist. Is it can be a problem in
implementation ? Did anybody observe similary problem or can check it in your system ?

Regards
--
Andrzej


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019