Re: [ntp:questions] Client using Meinberg NTP can't sync with ntp server problem

2014-07-10 Thread David Woolley
On 10/07/14 03:07, vothanhhun...@gmail.com wrote: After 2 hours it can sync now but I would expect it sync every 15 minutes because my program need precision time. To speed up initial sync use iburst. Your non-standard minpoll is contributing to the slow synchronisation. However note that,

Re: [ntp:questions] Client using Meinberg NTP can't sync with ntp server problem

2014-07-10 Thread vothanhhung22
On Thursday, July 10, 2014 10:49:55 AM UTC+7, William Unruh wrote: On 2014-07-10, vothanhhun...@gmail.com vothanhhun...@gmail.com wrote: On Thursday, July 10, 2014 3:53:42 AM UTC+7, David Woolley wrote: On 09/07/14 18:30, E-Mail Sent to this address will be added to the

Re: [ntp:questions] Embedded solutions

2014-07-10 Thread David Taylor
On 09/07/2014 18:45, Paul wrote: [] However you're showing a bias which steers away from a better solution, not needing the overhead of fully-featured NTPd isn't a defect it's an advantage. Simply that different folk have different needs. You later say: It's a Reference Clock not an instance

Re: [ntp:questions] Client using Meinberg NTP can't sync with ntp server problem

2014-07-10 Thread David Taylor
On 10/07/2014 08:39, David Woolley wrote: [] As others have noted, precision time means widely differing things to different people, ranging from the unachievable to cases where ntpd is overkill. Many people would have a definition of precision time which is unachievable on Windows, as Windows

Re: [ntp:questions] Client using Meinberg NTP can't sync with ntp server problem

2014-07-10 Thread Jochen Bern
On 07/10/2014 10:24 AM, vothanhhun...@gmail.com wrote: Thanks for your explaination. The reason I use NTP because I want my computer clock have the same time as the server. It is always 1 or 2 minutes behind compare to the ntp server. I admit that it *is* odd that ntpd doesn't change that

Re: [ntp:questions] Client using Meinberg NTP can't sync with ntp server problem

2014-07-10 Thread Martin Burnicki
vothanhhun...@gmail.com wrote: Hi all, Currently, I am working with meinberg ntp and I can't sync with ntp server. I have made rules that allow UDP port 123, turned off w32time and change to some popular ntp server but there is no luck. I have followed this FAQ:

Re: [ntp:questions] Embedded solutions

2014-07-10 Thread Brian Utterback
On 7/9/2014 11:40 PM, Paul wrote: On Wed, Jul 9, 2014 at 8:05 PM, Null wrote: [stuff] Please check the links provided. It would seem the most common problem people have is not being able to think about a network attached reference clock that uses NTP responses rather than PPS + serial stream

Re: [ntp:questions] Embedded solutions

2014-07-10 Thread Paul
On Thu, Jul 10, 2014 at 4:20 AM, David Taylor david-tay...@blueyonder.co.uk.invalid wrote: Simply that different folk have different needs. This true but not nearly as much as people think. But yes different folks have different needs. Despite that in the next sentence You later say: It's a

Re: [ntp:questions] Client using Meinberg NTP can't sync with ntp server problem

2014-07-10 Thread Brian Inglis
On 2014-07-10 02:24, vothanhhun...@gmail.com wrote: On Thursday, July 10, 2014 10:49:55 AM UTC+7, William Unruh wrote: On 2014-07-10, vothanhhun...@gmail.com vothanhhun...@gmail.com wrote: On Thursday, July 10, 2014 3:53:42 AM UTC+7, David Woolley wrote: On 09/07/14 18:30, E-Mail Sent to this

Re: [ntp:questions] Embedded solutions

2014-07-10 Thread Paul
On Thu, Jul 10, 2014 at 9:07 AM, Brian Utterback brian.utterb...@oracle.com wrote: You still have the keys problem. Keys authenticate the NTP server to the client. How would you manage keys? Are you asking if it supports autokey? It currently doesn't, according to the doc there's one

Re: [ntp:questions] Embedded solutions

2014-07-10 Thread Brian Utterback
On 7/10/2014 9:26 AM, Paul wrote: On Thu, Jul 10, 2014 at 9:07 AM, Brian Utterback brian.utterb...@oracle.com wrote: You still have the keys problem. Keys authenticate the NTP server to the client. How would you manage keys? Are you asking if it supports autokey? It currently doesn't,

Re: [ntp:questions] Client using Meinberg NTP can't sync with ntp server problem

2014-07-10 Thread Martin Burnicki
Brian Inglis wrote: You can start ntpd with -g option which allows it to step your system time once, when it first starts; using iburst pool hk.ntp.pool.org iburst will allow the correct offset to be set within about 16s after startup. Thereafter it will stay within +/-128ms of UTC; after it has

Re: [ntp:questions] Embedded solutions

2014-07-10 Thread David Taylor
On 10/07/2014 14:13, Paul wrote: On Thu, Jul 10, 2014 at 4:20 AM, David Taylor david-tay...@blueyonder.co.uk.invalid wrote: Simply that different folk have different needs. This true but not nearly as much as people think. But yes different folks have different needs. Despite that in the

Re: [ntp:questions] Embedded solutions

2014-07-10 Thread Paul
On Thu, Jul 10, 2014 at 10:17 AM, Brian Utterback brian.utterb...@oracle.com wrote: Well, at least it supports the one key and it is apparently changeable. But NTP authentication is not mutual authentication, nor does it have anything to do with entitlement of the client. I spoke overly

Re: [ntp:questions] Client using Meinberg NTP can't sync with ntp server problem

2014-07-10 Thread William Unruh
On 2014-07-10, vothanhhun...@gmail.com vothanhhun...@gmail.com wrote: On Thursday, July 10, 2014 10:49:55 AM UTC+7, William Unruh wrote: On 2014-07-10, vothanhhun...@gmail.com vothanhhun...@gmail.com wrote: On Thursday, July 10, 2014 3:53:42 AM UTC+7, David Woolley wrote: On 09/07/14

Re: [ntp:questions] Client using Meinberg NTP can't sync with ntp server problem

2014-07-10 Thread David Woolley
On 10/07/14 09:23, David Taylor wrote: although Windows can be kept within a millisecond, But the uncertainty in the delay between real world events and application programs reading the corresponding time is likely to be rather larger. (Also, at least the past, ntpd only compensated well

Re: [ntp:questions] Client using Meinberg NTP can't sync with ntp server problem

2014-07-10 Thread Brian Inglis
On 2014-07-10 08:43, Martin Burnicki wrote: Brian Inglis wrote: You can start ntpd with -g option which allows it to step your system time once, when it first starts; using iburst pool hk.ntp.pool.org iburst will allow the correct offset to be set within about 16s after startup. Thereafter it