Re: [ntp:questions] NTP sever on an isolated Network

with greater than 8V. It takes 8-30 V input)) *Careful* - the Garmin GPS 18x Tech Spec warns that the (supplied) cigarette lighter adapter takes 8-30V, not the unit, so that adapter reduces the supplied voltage to the required 4.5-5.5V. -- Thanks. Take care, Brian Inglis Calgary, A

Re: [ntp:questions] NTP sever on an isolated Network

C >configuration is 5V or 8-30V. They could easily put the voltage reducer >into the unit rather than the cigarette plug. or they could put it into the >cigarette plug. We are both discussing in ignorance here. Easy to discover, spend (discount) CAD80 and measure. Just trying to prov

Re: [ntp:questions] Sudden drop in frequency after software update

03:29:00 shuksan kernel: Detected 2793.117 MHz processor. >Oct 13 12:26:08 shuksan kernel: Detected 2793.236 MHz processor. > >If I did the math right, that's 66 ppm peak-to-peak. I'm pretty >sure I've seen much worse. Is spread specturm clock signal generation (EMI re

Re: [ntp:questions] Start of new GPS 1024 week epoch

On 2013-08-11 00:44, David Taylor wrote: Today is the start of a new GPS 1024 week epoch - see: http://adn.agi.com/GNSSWeb/ Folks with really old GPS units are reporting problems, those of us with current millennium GPS receivers should be OK, though. You must have been looking at 1999! Ab

Re: [ntp:questions] Trying to use Dimension 4 time keeper

On 2013-09-08 11:51, W. eWatson wrote: On 9/7/2013 9:16 PM, David Taylor wrote: On 07/09/2013 22:38, W. eWatson wrote: I'm told that Dimension 4 is an accurate time keeper. I downloaded it and installed it. It's freeware, but would appreciate a $10 donation

Re: [ntp:questions] Trying to use Dimension 4 time keeper

On 2013-09-08 23:22, unruh wrote: On 2013-09-09, Brian Inglis wrote: On 2013-09-08 11:51, W. eWatson wrote: On 9/7/2013 9:16 PM, David Taylor wrote: On 07/09/2013 22:38, W. eWatson wrote: You may want to try the latest stable NTP release 4.2.6p5 from Meinberg, for ease of installation, on

Re: [ntp:questions] Trying to use Dimension 4 time keeper

On 2013-09-08 23:22, unruh wrote: On 2013-09-09, Brian Inglis wrote: On 2013-09-08 11:51, W. eWatson wrote: On 9/7/2013 9:16 PM, David Taylor wrote: On 07/09/2013 22:38, W. eWatson wrote: You may want to try the latest stable NTP release 4.2.6p5 from Meinberg, for ease of installation, on

[ntp:questions] AMD/Intel Hardware Timer Info

Discusses the AMD/Intel hardware timers in context of a Windows 8 issue: http://www.ocaholic.ch/modules/smartsection/item.php?itemid=1071 ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] Trying to use Dimension 4 time keeper

On 2013-09-13 17:41, W. eWatson wrote: On 9/13/2013 3:29 PM, E-Mail Sent to this address will be added to the BlackLists wrote: W. eWatson wrote:> Where do I execute this from? Run? c:\Program Files\NTP\bin\ntpq -pn Likely the correct path. Run: cmd doesn't work there. c:\Program Files\N

Re: [ntp:questions] Trying to use Dimension 4 time keeper

On 2013-09-13 22:48, W. eWatson wrote: On 9/13/2013 4:41 PM, W. eWatson wrote: On 9/13/2013 3:29 PM, E-Mail Sent to this address will be added to the BlackLists wrote: W. eWatson wrote:> Where do I execute this from? Run? c:\Program Files\NTP\bin\ntpq -pn Likely the correct path. Run: cmd

Re: [ntp:questions] ISP blocked port 123

On 2013-09-16 15:35, Charles Swiger wrote: Hi-- On Sep 16, 2013, at 2:28 PM, Bert Gøtterup Petersen wrote: Well we see different issues in different countries. The problem that I am in the development department, but the individual customer issue happens in the field somewhere fare away and

Re: [ntp:questions] Reasons of NTP not to use GPS source

On 2013-09-16 01:00, Igor Pavlov wrote: Hi! I am using GPS-receiver based on Geos-1m chip ( http://www.geostar-navigation.com/en/navigation_05.html) I connected it to serial port and configured NTP. It becomes unused by NTP: when do ntpq -p reuest ti puts "x" near "GPS_NMEA(1)" record. What re

Re: [ntp:questions] debugging level in ntp.conf

On 2013-09-18 01:26, Riccardo Castellani wrote: Which entry I have to add to ntp.conf to increase log level for daemon ? I found no documents about it, I can add only '-d' or '-D' option to 'ntp' but only if I run EXE file directly from shell. # Log everything logconfig =allall # Save clock lo

[ntp:questions] statistics command defined in docs?

On 2013-09-18 09:25, Brian Inglis wrote: Not seeing statistics command under Command Index or Monitoring Options: http://www.eecis.udel.edu/~mills/ntp/html/comdex.html http://www.eecis.udel.edu/~mills/ntp/html/monopt.html nor elsewhere under html: grep -i statistics against local copies of the

Re: [ntp:questions] convert_rawdcf: parity check FAILED on Olinuxino Maxi (iMX233)

Normally with speeds below 300 (150, 110, 75, 50) bps both interfaces need to be configured to use two stop bits to avoid framing errors. Many USB converters (and probably other serial interfaces) nowadays, lack support for low speeds, and possibly also double stop bits! On 2013-10-07 04:53, R

Re: [ntp:questions] Odd reachability with local clock on XP

On 2013-10-09 20:28, Philip Prindeville wrote: On Oct 9, 2013, at 6:26 PM, unruh wrote: On 2013-10-09, Philip Prindeville wrote: Hi, I'm running ntp-4.2.6p5 on Windows XP (SP3). I have, amongst other things, the following in my config: server 127.127.1.0 noselect minpoll 4 maxpoll 6 fud

Re: [ntp:questions] Odd reachability with local clock on XP

On 2013-10-11 02:14, mike cook wrote: Le 11 oct. 2013 à 00:18, David Woolley a écrit : On 10/10/13 16:57, mike cook wrote: Well, that isn't as easy as it sounds because you get different offsets for each of the associations and you have do the sums yourself. NTP does it for you in calc

Re: [ntp:questions] Odd reachability with local clock on XP

On 2013-10-11 14:33, mike cook wrote: Le 11 oct. 2013 à 19:36, Brian Inglis a écrit : On 2013-10-11 02:14, mike cook wrote: Le 11 oct. 2013 à 00:18, David Woolley a écrit : On 10/10/13 16:57, mike cook wrote: ntp disciplined system clockfrequency 35,838 ppm date time

Re: [ntp:questions] Odd reachability with local clock on XP

On 2013-10-11 15:51, Philip Prindeville wrote: [not sure why this was delayed but it was…reposting.] On Oct 9, 2013, at 9:30 PM, unruh wrote: On 2013-10-10, Philip Prindeville wrote: On Oct 9, 2013, at 6:26 PM, unruh wrote: On 2013-10-09, Philip Prindeville wrote: Hi, I'm running ntp

Re: [ntp:questions] ntp.conf on FreeBSD

On 2013-10-12 11:03, unruh wrote: On 2013-10-12, Steve Kostecke wrote: On 2013-10-12, Charles Elliott wrote: I built a NAS using FreeNAS, which is in turn based on FreeBSD, which has ntpd installed. I need to find ntp.conf so I can configure it for broadcast mode and maybe the GPS, but I can

Re: [ntp:questions] ntp.conf on FreeBSD

On 2013-10-12 13:40, unruh wrote: On 2013-10-12, Brian Inglis wrote: On 2013-10-12 11:03, unruh wrote: On 2013-10-12, Steve Kostecke wrote: On 2013-10-12, Charles Elliott wrote: I built a NAS using FreeNAS, which is in turn based on FreeBSD, which has ntpd installed. I need to find

[ntp:questions] NTP Setup and Pool Promotion

Few people have much if any awareness of NTP, nor our interest in it, even admins, for which it is just a small part of system setup. It is better if more use it and the defaults do no harm. IMO more setups should default to the explicit pool statement, allow selection only from country and co

[ntp:questions] NTP Setup and Pool Promotion

Few people have much if any awareness of NTP, nor our interest in it, even admins, for which it is just a small part of system setup. It is better if more use it and the defaults do no harm. IMO more setups should default to the explicit pool statement, allow selection only from country and co

Re: [ntp:questions] NTP clients

On 2013-10-26 06:20, Steve Kostecke wrote: On 2013-10-26, Harlan Stenn wrote: Please see http://www.eecis.udel.edu/~mills/ntp/html/miscopt.html#enable for the "monitor" directive, and perhaps also http://www.eecis.udel.edu/~mills/ntp/html/miscopt.html#mru The documenation at http://www.eeci

[ntp:questions] Enabling WinNT Port NTPD_CPU

say it was or was not being used. Why became apparent only when I downloaded, searched, and read the stable and dev sources. The considerations behind the current restrictions are not apparent from code or comments and ML discussions. -- Take care. Thanks, Brian Inglis #!powershell -File

[ntp:questions] WinNT Port Performance Counter Stability and Drift

System Management Mode BIOS at random, mainly to handle USB devices like mice, keyboards, drives. See http://lists.freebsd.org/pipermail/freebsd-amd64/2012-July/014756.html, links from that, and similar articles on the LKML and MSDN. -- Take care. Thanks, Brian Inglis 12 Oct 17:03:41 ntpd[2968

Re: [ntp:questions] WinNT Port Performance Counter Stability and Drift

: Re: [ntp:questions] WinNT Port Performance Counter Stability and Drift On 07/11/2013 22:15, Brian Inglis wrote: From the attached extract from my ntp log the current performance counter appears to have much higher drift ~25PPM than my hardware clock; my own calibration, timings, and loopstats

Re: [ntp:questions] WinNT Port Performance Counter Stability and Drift

possibly even cpus, although doing my own process affinity wiring to ntpd eliminates that possible variable. On 2013-11-07 23:58, David Taylor wrote: On 07/11/2013 22:15, Brian Inglis wrote: From the attached extract from my ntp log the current performance counter appears to have much higher drift

Re: [ntp:questions] WinNT Port Performance Counter Stability and Drift

: Re: [ntp:questions] WinNT Port Performance Counter Stability and Drift On 07/11/2013 22:15, Brian Inglis wrote: From the attached extract from my ntp log the current performance counter appears to have much higher drift ~25PPM than my hardware clock; my own calibration, timings, and loopstats

Re: [ntp:questions] WinNT Port Performance Counter Stability and Drift

: Re: [ntp:questions] WinNT Port Performance Counter Stability and Drift On 07/11/2013 22:15, Brian Inglis wrote: From the attached extract from my ntp log the current performance counter appears to have much higher drift ~25PPM than my hardware clock; my own calibration, timings, and loopstats

Re: [ntp:questions] how did ntp service set the maxallowphaseoffset

W32tm MaxAllowedPhaseOffset except for different service levels: The default value for domain members is 300. The default value for stand-alone clients and servers is 1. and the W32tm slew requirement: |CurrentTimeOffset| / (PhaseCorrectRate*UpdateInterval) < SystemClockRate / 2 -- -- Take care. Thanks, Bri

Re: [ntp:questions] how did ntp service set the maxallowphaseoffset

ool.ntp.org, tw.pool.ntp.org. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] how did ntp service set the maxallowphaseoffset

On 2013-11-19 00:57, David Woolley wrote: On 19/11/13 02:45, Brian Inglis wrote: W32tm is an SNTP service intended to synchronize time on workstations in a domain to a domain controller at intervals. w32time WAS such a service, and possibly still is out of the box. However, give or take

Re: [ntp:questions] how did ntp service set the maxallowphaseoffset

. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] Slow convergence loopstats (but nice results)

generating them? Loopstats offset/jitter should track your ref clock peerstats offset/jitter exactly, and comparing to your clockstats may point you to causes. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http:

Re: [ntp:questions] Slow convergence loopstats (but nice results)

On 2013-11-22 14:12, unruh wrote: On 2013-11-22, Brian Inglis wrote: On 2013-11-22 09:19, schmidt.r...@gmail.com wrote: I have just written a PHC driver for NTP and tested it on this system: Supermicro SYS-50150EHF-D525 which has a pair of Intel 82574L NICs which have IEEE 1588 hardware

Re: [ntp:questions] NTP not syncing

# allow ipv6 localhost6 and if you have other admin servers you can add similar statements with their DNS names. I look forward to others correcting any bad assumptions I picked up from old releases. ;^> -- Take care. Thanks, Brian Inglis

[ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll>7

ected to take care of this automatically? -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll>7

On 2013-11-26 08:22, Martin Burnicki wrote: Brian Inglis wrote: On 2013-11-25 07:36, Martin Burnicki wrote: Also, if you don't limit the upper bounds of the polling interval by "maxpoll 6" you may run into this bug: NTP Bug 2341 - ntpd fails to keep up with clock drift a

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll>7

On 2013-11-27 10:26, Martin Burnicki wrote: Brian Inglis wrote: > On 2013-11-26 08:22, Martin Burnicki wrote: >> Brian Inglis wrote: [...] > As I said above, on Windows stable, with only network servers, and > normal maxpoll 10, as the poll interval increases, the FLL kicks

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll>7

On 2013-11-27 23:15, Michael Tatarinov wrote: 2013/11/28, Brian Inglis : Running on AMD quad with stepping disabled in BIOS and fixes for TSC. Tried to force TSC with HTPD_PCC=1 but ntpd switched to using HPET! No apparent difference before/after. Did you mean NTPD_PCC? also ntpd has an

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll>7

On 2013-11-27 23:15, Michael Tatarinov wrote: 2013/11/28, Brian Inglis : Running on AMD quad with stepping disabled in BIOS and fixes for TSC. Tried to force TSC with HTPD_PCC=1 but ntpd switched to using HPET! No apparent difference before/after. Did you mean NTPD_PCC? also ntpd has an

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll>7

On 2013-11-28 00:46, xiaoniao112...@gmail.com wrote: 在 2013年11月28日星期四UTC+8下午3时11分23秒，Brian Inglis写道： On 2013-11-27 23:15, Michael Tatarinov wrote: > 2013/11/28, Brian Inglis : >> Running on AMD quad with stepping disabled in BIOS and fixes for TSC. >> Tried to force TSC with

Re: [ntp:questions] NTP Bug 2328 - Vista/Win7 time keeping inaccurate and erratic

handling residuals of quantized or rounded data, so the output data is as smooth (in either a visible or virtual sense) as possible. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] NTP Bug 2328 - Vista/Win7 time keeping inaccurate and erratic

On 2013-11-29 05:14, Martin Burnicki wrote: Brian Inglis schrieb: On 2013-11-28 02:31, Martin Burnicki wrote: On the other hand, as far as I know, there is no new API to apply adjustments to the Windows system time more smoothly. Mention of smooth reminded me of using Bresenham's algo

Re: [ntp:questions] I need help about Time Server DNS Names

Then pool.ntp.org is your best friend! On 2013-12-02 07:39, mike cook wrote: ntp.org is your friend. Le 2 déc. 2013 à 14:29, Jhake Jacobo a écrit : I need an IP address of FREE server time.. tnx -- Take care. Thanks, Brian Inglis ___ questions

Re: [ntp:questions] I need help about Time Server DNS Names

Then pool.ntp.org is your best friend! On 2013-12-02 07:39, mike cook wrote: ntp.org is your friend. Le 2 déc. 2013 à 14:29, Jhake Jacobo a écrit : I need an IP address of FREE server time.. tnx -- Take care. Thanks, Brian Inglis ___ questions

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll>7

n the criteria above, and four decent fairly local servers for those times when interconnects fail and only local servers are reachable. One thing I have noticed is that my NTP clock (HPET) is being reported as having ~28PPM drift where my hardware is only ~.9PPM

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll>7

On 2013-12-02 13:10, Harlan Stenn wrote: Brian Inglis writes: When I ran current stable under Win 7 with only network servers I found I had to drop minpoll to 4 (default is 6) so iburst would quickly get a good offset and pull drift down from initial out-to-lunch estimate compared to drift

Re: [ntp:questions] Bug 2341 - ntpd fails to keep up with clock drift at poll>7

On 2013-12-02 10:07, David Taylor wrote: On 02/12/2013 16:24, Brian Inglis wrote: [] When I ran current stable under Win 7 with only network servers I found I had to drop minpoll to 4 (default is 6) so iburst would quickly get a good offset and pull drift down from initial out-to-lunch estimate

Re: [ntp:questions] NTP not syncing

Linux be required in the Windows port? -- Take care. Thanks, Brian Inglis On 2013-12-06 03:27, Charles Elliott wrote: You might be able to do better. In QC an average of a randomly gathered sample of a continuous variable is distributed as normal (Gaussian). If NTPD kept a few more statistics (state

Re: [ntp:questions] NTP not syncing

over the place. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] NTP not syncing

On 2013-12-06 11:05, unruh wrote: On 2013-12-06, Brian Inglis wrote: It would be better if ntpd used the drift file frequency for the first two hours, instead of 15 minutes, before coming up with its (currently wild assed) guesstimate, and then spending 4 hours getting back to the drift

Re: [ntp:questions] logs not populating

ith the change above), and many problems will disappear. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] FreeBSD recipe to setup for timekeeping

han I thought I needed to know on the weekend! -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] FreeBSD recipe to setup for timekeeping

On 2013-12-11 11:35, unruh wrote: On 2013-12-11, Brian Inglis wrote: On 2013-12-10 15:05, unruh wrote: On 2013-12-10, Hal Murray wrote: Does anybody have a URL for a page that describes how to setup a FreeBSD system for timekeeping? Use either chrony or ntpd. I've got a FreeBS

Re: [ntp:questions] NTP server with Garmin GPS 18 LVC

configured laptop power saving + sleep + hibernate features off in the BIOS and OS? -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] Roof antenna, which one, would you bother?

page notes that Dave Hart bought and used these devices. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] Roof antenna, which one, would you bother?

On 2014-01-04 05:01, David Taylor wrote: On 03/01/2014 19:58, Brian Inglis wrote: [] Instructions are on David Taylor's site at http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm#usb I simplified the wiring shown in the above link by connecting all +5V power leads to pin 6 DSR. [] That

Re: [ntp:questions] enable pps not working from ntp.conf

n 4.2.6 at http://doc.ntp.org/4.2.6/miscopt.html so it looks like it was dropped in the initial 4.2.6 release, but the command summary lines still need cleaned up in miscopt.html docs for 4.2.6+. -- Take care. Thanks, Brian Inglis ___ questions mailing list

Re: [ntp:questions] enable pps not working from ntp.conf

default noquery nomodify notrap nopeer # IPv4 restrict -6 default noquery nomodify notrap nopeer # IPv6 restrict 192.168.1.0 # allow local domain restrict 127.0.0.1 # allow local host ==end== I'm using 4.2.6p5. TIA, Dennis -- Take care. Thanks, Brian Inglis __

Re: [ntp:questions] enable pps not working from ntp.conf

ow a selectable skew so that several pps devices can run at the same time so you'd lose that functionality. ...but that is not required for a single device -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http

Re: [ntp:questions] better rate limiting against DDoS amplification attacks?

public and pool server availability, and higher loads on those well known sources still accessible. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] How is the NTP build tested?

rately than does ntpd. Certainly chrony must read and send the same packets, but is it a bad thing that chrony then uses those packets very differently? I would say not. Besides the U Del ntp-dev release, the NTP.org stable release, and chrony, there is also the OpenBSD derived

Re: [ntp:questions] need option to ignore 'leap not in sync error'

f the local clock driver, you could configure all servers with the client stratum as the orphan stratum. Orphan mode will be disabled as soon as the prefer peer upstream source is available and the prefer peer again becomes the source for the downstream servers. -- Take care. Thanks, Brian I

Re: [ntp:questions] simple nt.conf cases for ntp-client

p/2005-10/msg00021.html -- see DLM's recommendation? ;^> -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] simple nt.conf cases for ntp-client

Clock Adjust Process -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] NTP request retry?

ple of articles about changing ARP timeouts: http://www.embeddedsystemtesting.com/2013/01/arp-timeout-value-for-linux-windows.html http://support.microsoft.com/kb/949589 -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lis

Re: [ntp:questions] NTP request retry?

On 2014-01-27 14:45, Rob wrote: Rick Jones wrote: Brian Inglis wrote: You don't specify which system and devices you are using, so here are a couple of articles about changing ARP timeouts: http://www.embeddedsystemtesting.com/2013/01/arp-timeout-value-for-linux-windows.html

[ntp:questions] Greenwich Time and Longitude

comp.time.nuts - the link is to an online and downloadable document comprehensively referencing the histories of the distribution of standard times, the establishment of standard time zones, and some of the absurdities uncovered. -- Take care. Thank

Re: [ntp:questions] London Metro newspaper misrepresent NTP amplification attack.

=NTP+attack+DDOS+OR+reflection+OR+amplification&oq=NTP+attack+DDOS+OR+reflection+OR+amplification&hl=en&tbm=nws -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] Score is drop in cycles

nce clock. 2014-02-14 Mingda Wang -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] Remote access to http based service

5 05:09:52 00 0 0 889.2 UTC(NIST) * Connection closed by foreign host. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] NTP and DoS attacks

moment. Maybe it's under attack? :) The site was unreachable after Harlan posted the night before thru yesterday morning. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

[ntp:questions] USTiming.org and Certichron sites out for a week

Anyone know why USTiming.org and Certichron sites have been down for the last week? Nothing relevant mentioned on Google or any lists. Wondered if they might have been blocked as a reflector of recent DDoS attacks? -- Take care. Thanks, Brian Inglis

Re: [ntp:questions] Linux kernel bug in 3.12, low_latency on serial ports is broken

erformance criteria. How about suggesting no degradation in kernel PPS performance after change? That should be measurable within the kernel and externally with ntpd. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lis

[ntp:questions] Win7 NTP-dev NMEA User Mode PPS, Freq_Mode Not Working

0.0.0.0 c412 02 freq_set then 0.0.0.0 c415 05 clock_sync reported 15mins later. Anyone any ideas what might be causing this/these discrepancies between dev and stable? -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org

Re: [ntp:questions] Win7 NTP-dev NMEA User Mode PPS, Freq_Mode Not Working

On 2014-02-27 05:21, David Taylor wrote: On 27/02/2014 08:37, Brian Inglis wrote: Hi folks, Tried testing latest NTP-dev 4.2.7p424 from DJT site on Windows 7 x64 with UTC RTC and Garmin 18x LVC with DCD PPS sending RMC only in NMEA 2.3+ mode @ 9600. NTPd running at realtime priority affinity

Re: [ntp:questions] Win7 NTP-dev NMEA User Mode PPS, Freq_Mode Not Working

On 2014-02-27 09:44, Brian Inglis wrote: On 2014-02-27 05:21, David Taylor wrote: On 27/02/2014 08:37, Brian Inglis wrote: Hi folks, Tried testing latest NTP-dev 4.2.7p424 from DJT site on Windows 7 x64 with UTC RTC and Garmin 18x LVC with DCD PPS sending RMC only in NMEA 2.3+ mode @ 9600

Re: [ntp:questions] error message on startup

ork user directory; init.d script location, permissions, any userid specified in init script, init startup order relative to service dependencies, possibly chkconfig settings in the script and on the system. -- Take care. Thanks, Brian Inglis ___ ques

Re: [ntp:questions] Meinberg Configuration Help

and recommends restrict default noquery [and possibly other no... options] or you could use restrict default ignore; also add disable monitor. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org

Re: [ntp:questions] Win7 NTP-dev NMEA User Mode PPS, Freq_Mode Not Working

On 2014-03-04 03:12, Martin Burnicki wrote: Brian Inglis wrote: Can not use signed kernel mode PPS driver (32 bit?) with my 64 bit PCI serial card drivers - it seems to be ignored. Signed 32 and 64 bit versions of the serialpps driver are available in this ZIP file: http://support.ntp.org

Re: [ntp:questions] ACTS and Leap Event

n do with those warnings is a SMOP? -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] Help with cross-compiling NTP for the Raspberry Pi requested

with the same source and object libraries you have on your RPi. When you have managed a cross-configure, diff the generated files against those from your native RPi configure, to see if there is anything you may need to tweak, before you cross-make anything. -- Take c

Re: [ntp:questions] Time of by 4 min

lable since NTP DDoS amplification attacks earlier this year, and HNAP1 router attacks probably have not helped lessen the load on downstream and ISP networking staffs, who may be implementing mitigations without due consideration for side effects. -- Take care.

Re: [ntp:questions] Indirect GPS time source options

with antennas, and consultancies who will buy, install, and set it up for you. All OEM timing receivers typically perform much better than hand held devices, and the gold standard seems to be the Trimble Thunderbolt, available locally from Novotech in Pointe Claire near

Re: [ntp:questions] IEEE 1588 (PTP) at the nanosecond level?

es up to 10-20ns. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] IEEE 1588 (PTP) at the nanosecond level?

es up to 10-20ns. -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] IEEE 1588 (PTP) at the nanosecond level?

On 2014-03-19 03:30, Martin Burnicki wrote: Brian Inglis wrote: On 2014-03-18 02:59, Martin Burnicki wrote: All depends on how accurate and precise you can get your timestamps, and this is probably easier with network packet timestampers at both sides of a cable than with a wireless time

Re: [ntp:questions] IEEE 1588 (PTP) at the nanosecond level?

On 2014-03-19 12:01, E-Mail Sent to this address will be added to the BlackLists wrote: Brian Inglis wrote: Martin Burnicki wrote: At the single nanosecond accuracy level it would also be important to *which* local realizations UTC(k) you are referring, UTC(NIST), UTC(USNO), UTC(PTB

Re: [ntp:questions] IEEE 1588 (PTP) at the nanosecond level?

On 2014-03-19 16:32, Paul wrote: On Wed, Mar 19, 2014 at 6:16 PM, Brian Inglis < brian.ing...@systematicsw.ab.ca> wrote: Each constellation has its own epoch, TAI or UTC time scale, and uncertainty: I'm unclear how various time scales relate to PTP. It would appear that the desig

[ntp:questions] BBC - Hack attacks battled by net's timekeepers

"Harlan Stenn from the Network Time Foundation" noted and quoted in: http://www.bbc.com/news/technology-26662051 -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] Quality vs. Quantity

I hope that description is inaccurate, because of the additional delay and jitter added by passing twice through the front end. I would expect the load balancer to only provide the IP addresses of the currently lowest loaded and highest quality servers closest to the client, as the NTP Pool d

Re: [ntp:questions] [Android+NTP] synchronise time with millisecond accuracy

or reports on Wifi at http://satsignal.eu/ntp/Win-7-Wi-Fi-vs-LAN.html and you can look at stats for NTP systems on his Wifi at http://satsignal.eu/mrtg/daily_ntp.html or http://satsignal.eu/mrtg/performance_ntp.php#wifi with averages from .75-3ms and max about 6ms. -- Take care. Thanks, Br

Re: [ntp:questions] [Android+NTP] synchronise time with millisecond accuracy

or reports on Wifi at http://satsignal.eu/ntp/Win-7-Wi-Fi-vs-LAN.html and you can look at stats for NTP systems on his Wifi at http://satsignal.eu/mrtg/daily_ntp.html or http://satsignal.eu/mrtg/performance_ntp.php#wifi with averages from .75-3ms and max about 6ms. -- Take care. Thanks, Brian Ingli

Re: [ntp:questions] ntpd access restrictions: Server allowed works only with ipaddress

restrict timeserver1-hostname nomodify restrict timeserver2-hostname nomodify -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] Event log configuration?

llall -- Take care. Thanks, Brian Inglis ___ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions

Re: [ntp:questions] questions] Automatic time synchronization of local hw clock.

DST) by subtracting your UTC offset or using a UTC reference. Save and Exit BIOS setup and continue rebooting. Windows will come up using the RTC time directly to set the system to UTC but your logon time zone settings will be used normally for display. -- Take care.

Re: [ntp:questions] Issues installing ntpd on Win 7

ers ConfigurationFileREG_SZC:/ProgramData/NTP/etc/ntp.conf If all else fails, try a restart, then an uninstall, then another restart, then another install, then maybe another restart. -- Take care. Thanks, Brian Inglis ___ questions mailin

Re: [ntp:questions] Can NTP sync within 12us for NBFM

, multiplies, and filters the result to the FM carrier frequency, could a phase error more than 12us/s (PPM) possibly generate either a significant signal distortion, and/or unwanted harmonics within the filter passband? -- Take care. Thanks, Brian Inglis

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