Re: [ntp:questions] ntp-dev: PPS is a falseticker?

2014-06-15 Thread Rob
A C agcarver+...@acarver.net wrote: On 2014-06-14 12:57, Rob wrote: A C agcarver+...@acarver.net wrote: I actually disliked having to use a prefer peer for PPS as well. So I modified the source code to remove that requirement. As long as there's a source that is acceptable to the selection

Re: [ntp:questions] ntp-dev: PPS is a falseticker?

2014-06-15 Thread Rob
Brian Inglis brian.ing...@shaw.ca wrote: On 2014-06-14 12:03, Rob wrote: Brian Inglis brian.ing...@systematicsw.ab.ca wrote: I see no problem, really no problem, in this configuration and I wonder why the software makers do see a problem in it and want me to make a configuration decision that

[ntp:questions] Al madinah international university opening apply for university colleges (September season)

2014-06-15 Thread Marwa Kotb
MR/ MiSS * al madinah international university which win dependence Malaysian Ministry of Higher Education Malaysia (MOHE) and also winning the adoption of all academic programs and courses, the university that are approved by the Malaysian funds and private academy, which deals with

Re: [ntp:questions] ntp-dev: PPS is a falseticker?

2014-06-15 Thread Rob
Paul tik-...@bodosom.net wrote: On Sat, Jun 14, 2014 at 2:03 PM, Rob nom...@example.com wrote: Everyone seems to think that GPS equates NMEA. Wrong. ... It apparently assumes anyone who has a PPS signal also has a device that provides date and time information, which is wrong. ... But of

Re: [ntp:questions] ntp-dev: PPS is a falseticker?

2014-06-15 Thread Rob
Paul tik-...@bodosom.net wrote: On Sat, Jun 14, 2014 at 12:42 PM, Brian Inglis brian.ing...@systematicsw.ab.ca wrote: There may be no problem with time only messages: the NMEA driver page, shows support of GLL and GGA which provide only time. Other drivers may allow similarly limited

Re: [ntp:questions] NTP Pool Server Costs me $40/mo in Bandwidth--is there a suggested way to rate-limit?

2014-06-15 Thread Rob
brian.cun...@gmail.com brian.cun...@gmail.com wrote: Hi All, Is there a suggested way to rate-limit queries by broken clients? There isn't any. In fact, many methods to do that are likely to make the problem worse. For example, people suggest to limit the number of queries answered or even

Re: [ntp:questions] NTP Pool Server Costs me $40/mo in Bandwidth--is

2014-06-15 Thread David Woolley
On 15/06/14 15:16, Jason Rabel wrote: On a related note, is there any way to determine if the requests are made by ntpdate vs ntpd? I realize ntpdate is depreciated but ntpdate cannot send a valid stratum or reference time. Strictly speaking it should obey the SNTP rules and send most of

Re: [ntp:questions] ntp-dev: PPS is a falseticker?

2014-06-15 Thread Paul
On Sun, Jun 15, 2014 at 12:11 PM, Rob nom...@example.com wrote: Did you put prefer on the PPS and not on another source? That was the complete output of ntpq. The local clock is marked prefer; it can reliably number the seconds. This is just a demonstration and I think it unwise to run this

Re: [ntp:questions] NTP Pool Server Costs me $40/mo in Bandwidth--is

2014-06-15 Thread Harlan Stenn
Jason Rabel writes: On a related note, is there any way to determine if the requests are made by ntpdate vs ntpd? I realize ntpdate is depreciated but it is still used (or a hacked down version) by a lot of routers, and many distros still include it too. Not that I'm aware of - each sends a

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

2014-06-15 Thread jthulard
Hello, I'm looking for a way to speed up the ntp convergence of a system which would be restarted after several days being off. Does the use of PPS improve this convergence time ? This is local configuration, with one LAN and one NTP server, with about 30 NTP clients. Thank you. JT

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

2014-06-15 Thread Harlan Stenn
jthul...@gmail.com writes: Hello, I'm looking for a way to speed up the ntp convergence of a system which would be restarted after several days being off. Does the use of PPS improve this convergence time ? This is local configuration, with one LAN and one NTP server, with about 30 NTP

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

2014-06-15 Thread David Taylor
On 16/06/2014 04:29, jthul...@gmail.com wrote: Hello, I'm looking for a way to speed up the ntp convergence of a system which would be restarted after several days being off. Does the use of PPS improve this convergence time ? This is local configuration, with one LAN and one NTP server, with