David Mills mi...@udel.edu wrote:
Third, the data reported is not from ntpd, but another daemon called
gpsd. Apparently it doesn'tt like the PPS signal. I don't know what
grooming algorithm it uses, but both the kernel and atom driver use a
trimmed-mean median filter, which is a rather
On Tue, 3 Feb 2009, alkope...@googlemail.com wrote:
Hi
Where can I find a detailed description of all these values provided
by ntpq -c rv?
What do you think which values are important for logging and graphical
display to see problems fast? Here is an example
phil.new...@wendysarbys.com phil.new...@wendysarbys.com wrote:
- If you have NMEA output from the GPS in your ntp.conf file
(127.127.20.0), expect it to have reach 0 reported when you finally get
PPS (127.127.28.0) working. You can have NMEA or PPS from your serial
input, you just can't have
these variations.
ISTR it being mentioned in the FAQ.
URL?
Regards,
Rob
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all over the place as described.
However, it appears that this may have finally been fixed.
It's pretty stable except for this perticular reboot on this perticular box.
Regards,
Rob
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Hi there
One of my Debian Lenny boxes more then halved it's 'frequency' after a
software update (among others, kernel and ntpd). It used to be 43 ppm
and is now below 17 ppm and still dropping.
Is this normal?
Regards,
Rob
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On Fri, 9 Jan 2009, Folkert van Heusden wrote:
transmitted 4, in filter 4
reference time:cd0c473b.73087696 Mon, Jan 5 2009 9:45:47.449
originate timestamp: cd0f5b7d.d6ff250b Wed, Jan 7 2009 17:49:01.839
transmit timestamp: cd0f5b7d.cf7e90ff Wed, Jan 7 2009 17:49:01.810
filter
On Fri, 9 Jan 2009, Folkert van Heusden wrote:
Hi,
Got one question:
reference time:cd0c473b.73087696 Mon, Jan 5 2009 9:45:47.449
( http://nmi.nl/index.php?pageId=1215lg=nl )
A wireshark capture shows that it sends a bogu reftime ...
Reference Clock Update Time: Jan 5, 2009
On Thu, 8 Jan 2009, Heiko Gerstung wrote:
Folkert van Heusden schrieb:
Hi,
It seems the Dutch NMi organisation (which is the time reference for the
Netherlands) has an NTP-service as well. Now I tried retrieving the time
with ntpdate (just to see if it was reachable) but ntpdate refuses
On Wed, 7 Jan 2009, Folkert van Heusden wrote:
Hi,
It seems the Dutch NMi organisation (which is the time reference for the
Netherlands) has an NTP-service as well. Now I tried retrieving the time
with ntpdate (just to see if it was reachable) but ntpdate refuses it.
Using the regular ntp
2.6.26-12
(identical source).
2.6.26-1-486 locked up, 2.6.26-1-686 did not. Neither did my Sarge
2.4.27-2-686 Pentium II or Sid 2.6.20-1-686 Pentium III.
Apart from that everything went smoothly.
Apparently my ISPs clocks messed up again.
Regards,
Rob
... 15 V
[2] TTL high is actually Ca 3.5 V. CMOS high is 5 V (when supplied
with 5 V power).
Regards,
Rob
--
Anglo-Saxon management is a memetic virus
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that of an RS232 C receiver, so one would expect
somewhat lower an output voltage into the real load. Figures for 4000
series CMOS, from 1975 RCA COS/MOS Integrated Circuits Data Book.
Regards,
Rob
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and a few other people and institutions.
I read that, during the previous leap second, in the countdown to the
new year on BBC TV, the last 'second' lasted two instead of one seconds.
Regards,
Rob
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second of the old. I assume BBC (and ntp ) follow the former.
AFAIK, the first is the standard, the second the implementation.
Regards,
Rob
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127.127.28.0 refid PPS
ttyS1 gets all the signals, ttyS0 just the PPS.
This worked better then GPSD, so I think I will return to this setup.
Cut
Regards,
Rob
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Hi there
George R. Kasica wrote:
Did you need to use two physical serial plugs or a splitter or just do
this with symlinks in the OS?
Two plugs.
Regards,
Rob
--
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127.127.28.1 refid PPSa
NTPD want to make shore that GPS time source isn't talking nonsense.
This means you have to use an other time source as well.
Regards,
Rob
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Hi there
Hal Murray wrote:
That site is unlikely to be down for long.
It's still down.
I can ping time.nist.gov, but it won't FTP.
Are you behind a NAT box? I need to use the passive mode for ftp.
No.
I also tried the shell box at my ISP.
Same result.
Regards,
Rob
Hi there
David L. Mills wrote:
I am told the file is on all NTP servers operated by NIST. See the list
of public servers at NIST or www.ntp.org.
ftp://ntp-a.boulder.nist.gov/pub/leap-seconds.3427142400 works
Thanks!
Regards,
Rob
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Hi there
Antonio M. Moreiras wrote:
Cut
1 - download ftp://time.nist.gov/pub/leap-seconds.3427142400
Is there an other source?
This site appears to be down.
Cut
Regards,
Rob
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-8 [RFC3629] (note that US-ASCII is a subset of UTF-8);
That's transport, not content.
For content the RFC refers to MIME.
Regards,
Rob
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that is at fault? If it is the list
itself... well, isn't it absurd to restrict content of a mailing list
to 7-bit us-ascii? It is 2008, not 1988.
Post 1999 software should support UTF-8.
Regards,
Rob
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. I would have to look up which one.
Regards,
Rob
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Hi there
David J Taylor wrote:
Those characters display correctly on my NNTP feed from my ISP, using
Microsoft Outlook Express for news-reading.
You convert the text without stating the charset used, which makes non
ascii unreadable.
This is probably an Outlook bug.
Regards,
Rob
On Sun, 5 Oct 2008, Hans J?rgen Jakobsen wrote:
I would like NTP traffic to use my providers EF traffic class. One way of
doing that would be to send packet with DSCP == 46 (TOS byte == 184).
But I have had no luck.
I have fetched latest dev version ([EMAIL PROTECTED])
No matter if what i
On Tue, 16 Sep 2008, Kevin Oberman wrote:
We have a fairly large mesh of NTP servers spread across the
US. Almost all have PPS reference clocks and are quite
accurate. Recently one of the reference clocks located across the county
seems to have failed. Such is life.
The problem is that the
Richard B. Gilbert [EMAIL PROTECTED] wrote:
My memory grows DIMM but ISTR there is a program in at least some Unix
or Unix-like operating systems that will tell you which program(s) have
which files open.
Give me a few weeks or months to think about it and the answer will
bubble up from
The driver was written for FreeBSD, not OpenBSD.
It's under a BSD license, feel free to port it.
Rob
On Mon, 10 Mar 2008, Andrew Gallo wrote:
Thanks for the quick reply.
Symmetricom actually has the freeBSD source code, which I am trying to
compile without success. As far as writing
the constraints you wish to assume.
Rob
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11.20 12.02 12.93 13.86 14.90,
filtdisp= 0.000.240.480.740.991.261.52
1.79
Looks like the offset is still trending to zero, with a
long way to go.
Rob
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-c as -c rv x (where x is the association index
for the refclock 16) and ntpq -crv would be useful.
Rob
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Regards,
Rob
--
When the Iron Curtain fell, all of the West rejoiced that the East
would become just as free as the West. It was never supposed to be the
other way around. (Rick Falkvinge)
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your plots.
The link http://www.febo.com/time-freq/wwvb/vlf.html gives some info on
diurnal shifts on WWVB, but these look to me in 10s of microseconds rather
than the figures you quote.
Interesting to see if anyone else has any ideas.
Rob K
of the step you are seeing?
If on a regular 24 hour basis, I'm guessing due to diurnal affects. Do you
have a plot we can see?
Rob Kimberley
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Regards,
Rob
--
When the Iron Curtain fell, all of the West rejoiced that the East
would become just as free as the West. It was never supposed to be the
other way around. (Rick Falkvinge)
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.
Now it's at six lines per second; GPRMC, GPGGA, GPGSA and three GPGSV
lines (plus one PGRMT per minute).
Regards,
Rob
--
When the Iron Curtain fell, all of the West rejoiced that the East
would become just as free as the West. It was never supposed to be the
other way around. (Rick Falkvinge
Hi there
Rob van der Putten wrote:
Cut
My Garmin was sending to much data, sending a NMEA sentence once per
second.
Sorry, once per two seconds.
Cut
Regards,
Rob
--
When the Iron Curtain fell, all of the West rejoiced that the East
would become just as free as the West. It was never
Hi there
Steve Kostecke wrote:
There is no benefit to sending all of those NMEA sentences.
Select one and turn the rest off.
For just time GPRMC will do.
Regards,
Rob
--
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would become just as free as the West
Have come across requirements in MIL sat comms systems that need GPS time as
well as UTC. In fact I supplied a system to a MIL customer a few years ago
with two Zyfer GPS NTP servers - one set to provide UTC time and the other
set to provide GPS time.
Rob Kimberley
David L. Mills [EMAIL
remember correctly, and from your post, you are
in Netherlands, so you can estimate propagation delay. However, I don't see
why you would want to use an LF reference of lesser accuracy and estimated
delay when you can use GPS.
Just a thought.
Good luck
Rob Kimberley
and Router to be taking time from same source.
Cheers
Rob Kimberley
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Richard B. Gilbert [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Rob Kimberley wrote:
Does anyone have recommendations for an ADSL Wireless Router that I can
manually set the NTP Server address on? My Belkin unit comes
pre-configured with external server addresses. I want
Euro zone [1] are free of charge. Outside the EU they
are very expensive.
[1] Also called Euro land. These are countries which use the euro (not
the entire EU). It doesn't include the UK.
Regards,
Rob
--
Avoid alphabet soup. Include the charset in your HTML header;
META HTTP-EQUIV=Content-Type
=VIEWPRODProdID=121
MegaGPS.com ships internationally. I don't know about Garmin.
Their webform is broken.
Any suggestions?
Regards,
Rob
--
Avoid alphabet soup. Include the charset in your HTML header;
META HTTP-EQUIV=Content-Type CONTENT=text/html; charset=Your_Charset
-lvc-oem-system-waas12.html
I hope it actually does work.
Regards,
Rob
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META HTTP-EQUIV=Content-Type CONTENT=text/html; charset=Your_Charset
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order one from the Garmin site?
Regards,
Rob
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, I should not need to do that. I do not have
RANDFILE defined. According to the docs at
http://www.eecis.udel.edu/~mills/ntp/html/keygen.html#rand , ntpd should
look at /root/.rnd for the random file if RANDFILE is not defined.
It looks like a bug to me. But it is easy to get around.
Rob
On Wed, 10 Oct 2007 08:19:00 -0400, Rob wrote:
It looks like a bug to me. But it is easy to get around.
I am running ntp 4.2.4p4 - the stable version.
I have filed a bug report.
See http://support.bugs.org/bugs/show_bug.cgi?id=936
It looks like a bug in EITHER ntpd or in the docs.
I see
Steve wrote:
Why don't you test it?
Well, I did. And got some strange results.
First of all, if you specify notrap on your restrict line(s), you don't
stop all traps. You will get at least one trap messaage stating that auth
has failed.
e.g
robs-computer:~ rob$ perl /Users/rob/Desktop
restrict line). Of course, there is
no harm is also adding notap to restrict lines that have noquery on them.
If my understanding is incorrect, I hope someone will correct me. :-)
Rob
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.
I suspect the noquery would also block traps. I am not sure.
Under this situation, one could use ntp authentication on the LAN to help
ensure trustworthiness of the time source.
Rob
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.
If one uses the noquery restriction, then does the notrap option do
anything? I think not. If all queries are blocked then how can one do
any trapping? Is this correct?
Rob
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On Sun, 30 Sep 2007 12:41:40 -0400, Rob wrote:
On Sun, 30 Sep 2007 09:50:04 -0400, Rob wrote:
But my Linux box gets a Kiss of Death (kod) packet (.INIT.) when trying
to connect or sync to time.nrc.ca. (I can connect and sync to
time.chu.nrc.ca).
Hmm. After restarting ntpd, my
?
Rob
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On Sun, 30 Sep 2007 09:50:04 -0400, Rob wrote:
But my Linux box gets a Kiss of Death (kod) packet (.INIT.) when trying
to connect or sync to time.nrc.ca. (I can connect and sync to
time.chu.nrc.ca).
Hmm. After restarting ntpd, my Linix box connected to time.nrc.ca.
But this behaviour
with
wireless routers.
Rob Kimberley
Guy [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Dear all,
I am a student from a French engineering school. I am currently
working on a synchronization over WiFi project that could apply to
embedded devices.
For the moment, I have only reached
properly;
http://www.sput.nl/ntpstats/pc5/pc5-ntp-freq.png
It just says 74, 74, 74 etc.. Instead of 73.9, 74.0, 74.1, etc.
It's OK on my Sarge box though;
http://www.sput.nl/ntpstats/rrdtool/sput-ntp-freq.png
Regards,
Rob
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