The NTP ST1 server at the University of Houston has been offline for about a
month. Any information about its demise? Yet another victim of a DOS attack?
TIA
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On 2014-04-24, Montgomery, Peter BIS peter.montgom...@fs.utc.com
wrote:
I am new to NTP. But I have a quick question that I need to answer soon.
I would like to know whether NTP can sync between a client and a server
within 1ms if the client and server are Linux applications on a
Montgomery, Peter BIS writes:
I am new to NTP. But I have a quick question that I need to answer soon.
I would like to know whether NTP can sync between a client and a
server within 1ms if the client and server are Linux applications on a
simple local network ( less than 10 nodes).
Yes, in
Le 25 avr. 2014 à 08:34, William Unruh a écrit :
On 2014-04-24, Montgomery, Peter BIS peter.montgom...@fs.utc.com
wrote:
I am new to NTP. But I have a quick question that I need to answer soon.
I would like to know whether NTP can sync between a client and a server
within 1ms if
On 04/24/2014 09:31 PM, Rob wrote:
all that is required to get PPS working is to fetch the source
package of ntpd for the distribution and recompile it while that
single file has been added. e.g. on Ubuntu that file is present
in the package pps-tools.
So please, on your build systems,
On Thu, Apr 24, 2014 at 8:07 AM, Montgomery, Peter BIS
peter.montgom...@fs.utc.com wrote:
I am new to NTP. But I have a quick question that I need to answer soon.
I would like to know whether NTP can sync between a client and a server
within 1ms if the client and server are Linux
Jan Ceuleers jan.ceule...@computer.org wrote:
On 04/24/2014 09:31 PM, Rob wrote:
all that is required to get PPS working is to fetch the source
package of ntpd for the distribution and recompile it while that
single file has been added. e.g. on Ubuntu that file is present
in the package
Henry Hallam he...@pericynthion.org wrote:
On Thu, Apr 24, 2014 at 8:07 AM, Montgomery, Peter BIS
peter.montgom...@fs.utc.com wrote:
I am new to NTP. But I have a quick question that I need to answer soon.
I would like to know whether NTP can sync between a client and a server
On Fri, Apr 25, 2014 at 9:13 AM, Rob nom...@example.com wrote:
Of course it is all caused by the failure to include timepps.h in the
kernel include file package, where they belong IMHO. Apparently there
is unresolved debate about that. Ubuntu puts this development related
file in the
The NTP ST1 server at the University of Houston has been
offline for about a month. Any information about its demise?
Yet another victim of a DOS attack?
I don't know, it seemed kind of flaky at first then it stopped responding
altogether. I finally gave up and removed it from my list
a
I would like to know whether NTP can sync between a
client and a server within 1ms if the client and server
are Linux applications on a simple local network ( less
than 10 nodes).
Yes, if simply go by the offset figure in NTP, you can usually get
sub-millisecond figures between two
On 2014-04-25, Rob nom...@example.com wrote:
Henry Hallam he...@pericynthion.org wrote:
On Thu, Apr 24, 2014 at 8:07 AM, Montgomery, Peter BIS
peter.montgom...@fs.utc.com wrote:
I am new to NTP. But I have a quick question that I need to answer soon.
I would like to know whether NTP
On Thu, Apr 24, 2014 at 11:07 AM, Montgomery, Peter BIS
peter.montgom...@fs.utc.com wrote:
I would like to know whether NTP can sync between a client and a server
within 1ms if the client and server are Linux applications on a simple
local network ( less than 10 nodes).
As previously
Hi, all,
I recently use TrueTime XL-AK, when I first start the system, it only take
about 10 minutes to lock satellites. And I think it is good.
But the second time I move to another place (about 40 miles away from the first
place), it never lock any satellites again.
I am not sure about the
On Friday, April 25, 2014 9:40:47 AM UTC-5, Jason wrote:
I don't know, it seemed kind of flaky at first then it stopped responding
altogether. I finally gave up and removed it from my list a while ago. It
used to be stable for ages, maybe they just removed public access?
Even ntp.tmc.edu
Le 25 avr. 2014 à 17:56, Victor a écrit :
Hi, all,
I recently use TrueTime XL-AK, when I first start the system, it only take
about 10 minutes to lock satellites. And I think it is good.
But the second time I move to another place (about 40 miles away from the
first place), it never
[First reply to a MIME digest, hope the In-Reply-To doesn't end up as
broken as the timestamp in the following line :-C ]
On -10.01.-28163 20:59, Victor wrote:
when I first start the system, it only take about 10 minutes to lock
satellites. [...] But the second time I move to another place
On Friday, April 25, 2014 12:42:01 PM UTC-4, mike wrote:
Le 25 avr. 2014 à 17:56, Victor a écrit :
Hi, all,
I recently use TrueTime XL-AK, when I first start the system, it only take
about 10 minutes to lock satellites. And I think it is good.
But the second time I move
On Friday, April 25, 2014 1:00:00 PM UTC-4, Jochen Bern wrote:
[First reply to a MIME digest, hope the In-Reply-To doesn't end up as
broken as the timestamp in the following line :-C ]
On -10.01.-28163 20:59, Victor wrote:
when I first start the system, it only take about 10 minutes
While it is not always true, I would say that the vast majority of the time
when this happens it is a connection issue. Did you disconnect, check and
reconnect the cable to the antenna? Does this box have any indication of
antenna open/short or satellite visibility/signal levels? Did you try
Paul tik-...@bodosom.net wrote:
On Fri, Apr 25, 2014 at 9:13 AM, Rob nom...@example.com wrote:
Of course it is all caused by the failure to include timepps.h in the
kernel include file package, where they belong IMHO. Apparently there
is unresolved debate about that. Ubuntu puts this
From my site, both uh.edu and tmc.edu are pretty close,
latency-wise. And uh.edu's being ST1 was certainly a plus.
Anyway, it's still in my list, hoping that it comes back alive.
FWIW, the ST2 server at tamu.edu is pretty close to me too.
Adding another nearby server, even ST2 would be
I recently use TrueTime XL-AK, when I first start the
system, it only take about 10 minutes to lock satellites.
And I think it is good. But the second time I move to
another place (about 40 miles away from the first place),
it never lock any satellites again. I am not sure about the
On Friday, April 25, 2014 2:15:34 PM UTC-5, Jason wrote:
'ntppub.tamu.edu' usually has 'clepsydra.dec.com' as its selected time
source. I just use that server instead of tamu's...
I realize this, but I prefer to have a reference nearby, even if ST2 just to
validate an ST1. It has happened
On Friday, April 25, 2014 1:09:45 AM UTC-5, Evandro Menezes wrote:
The NTP ST1 server at the University of Houston has been offline for about a
month. Any information about its demise? Yet another victim of a DOS attack?
Alan Pfeiffer-Traum from UH was kind enough to explain:
tick.uh.edu has
On 2014-04-25, Paul tik-...@bodosom.net wrote:
On Fri, Apr 25, 2014 at 9:13 AM, Rob nom...@example.com wrote:
Of course it is all caused by the failure to include timepps.h in the
kernel include file package, where they belong IMHO. Apparently there
is unresolved debate about that. Ubuntu
On Friday, April 25, 2014 3:22:30 PM UTC-4, Jason wrote:
I recently use TrueTime XL-AK, when I first start the
system, it only take about 10 minutes to lock satellites.
And I think it is good. But the second time I move to
another place (about 40 miles away from the first place),
On Fri, Apr 25, 2014 at 4:36 PM, William Unruh un...@invalid.ca wrote:
Why shoul dit ship with no refclocks? ... DO you have the same opinion for
serial
port or parallel ports, or network drivers?
(Ignoring your mischaracterization of what I said and the strawman
arguments) because a
In article
8188ba2b01fb534a99c03d79c62ce1d80982f...@uusnwe3a.global.utcmail.com,
Montgomery, Peter BIS peter.montgom...@fs.utc.com wrote:
I am new to NTP. But I have a quick question that I need to answer soon.
I would like to know whether NTP can sync between a client and a server
On 2014-04-25, Paul tik-...@bodosom.net wrote:
On Fri, Apr 25, 2014 at 4:36 PM, William Unruh un...@invalid.ca wrote:
Why shoul dit ship with no refclocks? ... DO you have the same opinion for
serial
port or parallel ports, or network drivers?
(Ignoring your mischaracterization of what I
On 2014-04-26, Joe Gwinn joegw...@comcast.net wrote:
In article
8188ba2b01fb534a99c03d79c62ce1d80982f...@uusnwe3a.global.utcmail.com,
Montgomery, Peter BIS peter.montgom...@fs.utc.com wrote:
I am new to NTP. But I have a quick question that I need to answer soon.
I would like to
William Unruh writes:
On 2014-04-25, Paul tik-...@bodosom.net wrote:
On Fri, Apr 25, 2014 at 4:36 PM, William Unruh un...@invalid.ca wrote:
Why shoul dit ship with no refclocks? ... DO you have the same opinion for
serial
port or parallel ports, or network drivers?
(Ignoring your
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