Re: [ntp:questions] Windows-ntp on a vps creates a bigger and bigger delay?

2014-09-03 Thread David Woolley
On 01/09/14 17:01, gooly wrote: I just installed ntp on my Win 7 pc where it runs perfectly the difference is around 0,5 sec. 500ms is very bad. Then I installed ntp on my 2008 R 2vps where the delay gets bigger and bigger, around 12 sec per 30 min ?? ntpd requires the basic drift rate

Re: [ntp:questions] ntp-4.2.6p5

2014-09-03 Thread mike cook
Le 22 août 2014 à 20:09, Steve Clark a écrit : Hello, We are running the above release. It works great until the interface for the default route is brought down and then back up. Then after a half hour or so it ntpstat starts returning synchronised to unspecified at stratum 4

Re: [ntp:questions] NTP time synchronization issue in linux embedded target

2014-09-03 Thread David Woolley
On 02/09/14 19:43, Murugesh S wrote: 1. Why and what causes the drift to reach 500.00 on certain systems Normally broken hardware. # Drift file driftfile /etc2/ntp.drift restrict 127.0.0.1 There are no server lines; I don't understand how you can have a server association. However, in

Re: [ntp:questions] Windows-ntp on a vps creates a bigger and bigger delay?

2014-09-03 Thread Marco Marongiu
On 09/03/2014 08:51 AM, David Woolley wrote: On 01/09/14 17:01, gooly wrote: I just installed ntp on my Win 7 pc where it runs perfectly the difference is around 0,5 sec. 500ms is very bad. Then I installed ntp on my 2008 R 2vps where the delay gets bigger and bigger, around 12 sec per

Re: [ntp:questions] Windows-ntp on a vps creates a bigger and bigger delay?

2014-09-03 Thread Martin Burnicki
gooly wrote: Hi, I just installed ntp on my Win 7 pc where it runs perfectly the difference is around 0,5 sec. Then I installed ntp on my 2008 R 2vps where the delay gets bigger and bigger, around 12 sec per 30 min ?? For both installations I used more or less the default suggestion of ntp.

Re: [ntp:questions] PPS as a falseticker!!!

2014-09-03 Thread Martin Burnicki
Paul wrote: On Wed, Aug 27, 2014 at 4:44 PM, juergen perlinger juergen.perlin...@t-online.de wrote: The basic problem is that using a PPS clock and a GPS(NMEA) clock separates what belongs together This is not true. Normally I wouldn't fall prey to there's something wrong on the Internet

Re: [ntp:questions] Windows-ntp on a vps creates a bigger and bigger delay?

2014-09-03 Thread Martin Burnicki
Marco Marongiu wrote: Add that ntpd and virtual machines don't play nice together as it is like the processor of the VM is always changing its speed. I agree. This makes things worse even under the aspects of my other reply. Martin -- Martin Burnicki Meinberg Funkuhren Bad Pyrmont Germany

Re: [ntp:questions] ntp-4.2.6p5

2014-09-03 Thread Steve Clark
On 09/03/2014 02:29 AM, mike cook wrote: Le 22 août 2014 à 20:09, Steve Clark a écrit : Hello, We are running the above release. It works great until the interface for the default route is brought down and then back up. Then after a half hour or so it ntpstat starts returning synchronised

Re: [ntp:questions] Windows-ntp on a vps creates a bigger and bigger delay?

2014-09-03 Thread David Taylor
On 03/09/2014 09:29, Martin Burnicki wrote: [] You need to replace the NTP binaries by a newer version which contains another workaround for a limitation on current Windows versions, and you should use server a.b.c.d iburst minpoll 6 maxpoll 6 to get the most accurate results. For details

Re: [ntp:questions] About use of PPS in NTP sync

2014-09-03 Thread William Unruh
On 2014-09-03, Harlan Stenn st...@ntp.org wrote: Charles Elliott writes: It is possible to distribute more accurate and stable time using a local GPS device, either home built (e.g., If you are using an operating system like linux or bsd and the GPS puts out a PPS signal then yes. If windows

Re: [ntp:questions] How to measure computer clock error using PPS?

2014-09-03 Thread William Unruh
On 2014-09-03, Miroslav Lichvar mlich...@redhat.com wrote: (hmm, it took over 3 months for this message to reach the list) On Tue, May 27, 2014 at 03:03:47PM +0400, Vladislav Ross wrote: I have NTP server with Ublox LEA-6T GPS receiver. I want to determine my server's oscillator accuracy and

Re: [ntp:questions] NTP time synchronization issue in linux embedded target

2014-09-03 Thread William Unruh
On 2014-09-02, Murugesh S murugesh_...@yahoo.com wrote: Hello, This email is regarding NTP time synchronization issue that we see in our linux embedded systems. NTP version that is being used: 4.2.6p4. Brief description about issue: Our linux system is configured with NTP running

Re: [ntp:questions] PPS as a falseticker!!!

2014-09-03 Thread Paul
On Wed, Sep 3, 2014 at 4:53 AM, Martin Burnicki martin.burni...@meinberg.de wrote: I think the best solution depends on some details. Sure, but my point was that the bald assertion -- The basic problem is that using a PPS clock and a GPS(NMEA) clock separates what belongs together -- is wrong.

Re: [ntp:questions] About use of PPS in NTP sync

2014-09-03 Thread Paul
On Wed, Sep 3, 2014 at 10:30 AM, William Unruh un...@invalid.ca wrote: Without PPS, the GPS has an accuracy (delay and fluctuation) in the tens of milliseconds range Most of the time but, of course, not always. From my stable NMEA source (also using PPS): remote: oPPS(0) offset: -0.002

Re: [ntp:questions] Best practices

2014-09-03 Thread Charles Swiger
Hi, Mike-- On May 21, 2014, at 1:38 PM, Mike Edwards mced...@gmail.com wrote: I'm looking for information on best practices to configure ntp for a medium sized network. I'm looking for something similar to the whitepapers published by Cisco. Cisco outlines several configurations with a

Re: [ntp:questions] NTP time synchronization issue in linux embedded target

2014-09-03 Thread Harlan Stenn
Murugesh S writes: Hello, This email is regarding NTP time synchronization issue that we see in our linux embedded systems. NTP version that is being used: 4.2.6p4. Brief description about issue: Our linux system is configured with NTP running 4.2.6.p4. After couple of weeks the system

Re: [ntp:questions] ntp-4.2.6p5

2014-09-03 Thread Harlan Stenn
Steve Clark writes: Anyone know when the 4.2.8 is to be released? There are several bugs blocking 4.2.8. While I'm OK letting some of them slide, there are a few I'd really like to see get fixed. We're working on them as best we can. The good news is that the latest release of GNU AutoGen