> Hello - can you tell me what this pertains to, or if I can help?
>
> Andrew Novick
> NIST
>
>
> -Original Message-
> From: Mark Andrews [mailto:ma...@isc.org]
> Sent: Thursday, October 30, 2014 8:22 PM
> To: Pete Carah
> Cc: nanog@nanog.org; do-web
In message <5452d146.4080...@altadena.net>, Pete Carah writes:
> On 10/30/2014 06:27 PM, Mark Andrews wrote:
> > IPv6 is production. Report the problem.
> >
> Sorry for reporting it here, but there seems to be more than one problem
> (the link resulting from clicking on "nist time".
What does re
On 10/30/2014 06:27 PM, Mark Andrews wrote:
> IPv6 is production. Report the problem.
>
Sorry for reporting it here, but there seems to be more than one problem
(the link resulting from clicking on "nist time".
I get the nist front page fine on v6, then click on the time link and
get a 404 lookin
IPv6 is production. Report the problem.
In message
, Javier J writes:
> Either is alcatel-lucent.com for the past 2 days I noticed. Ipv6 version of
> their site broken.
> On Oct 30, 2014 1:18 PM, "Brian Christopher Raaen" <
> mailing-li...@brianraaen.com> wrote:
>
> > It is now working over
Either is alcatel-lucent.com for the past 2 days I noticed. Ipv6 version of
their site broken.
On Oct 30, 2014 1:18 PM, "Brian Christopher Raaen" <
mailing-li...@brianraaen.com> wrote:
> It is now working over IPv6
>
> On Thu, Oct 30, 2014 at 10:09 AM, Brian Christopher Raaen <
> mailing-li...@br
It is now working over IPv6
On Thu, Oct 30, 2014 at 10:09 AM, Brian Christopher Raaen <
mailing-li...@brianraaen.com> wrote:
> Still acting up for me this morning.
>
> On Wed, Oct 29, 2014 at 4:05 PM, Doug Barton wrote:
>
>> On 10/29/14 12:36 PM, Christopher Morrow wrote:
>>
>>> On Wed, Oct 29,
Still acting up for me this morning.
On Wed, Oct 29, 2014 at 4:05 PM, Doug Barton wrote:
> On 10/29/14 12:36 PM, Christopher Morrow wrote:
>
>> On Wed, Oct 29, 2014 at 11:36 AM, Doug Barton
>> wrote:
>>
>>> Happy Eyeballs has nothing to do with it. This is a server
>>> misconfiguration
>>> plai
On 10/29/14 12:36 PM, Christopher Morrow wrote:
On Wed, Oct 29, 2014 at 11:36 AM, Doug Barton wrote:
Happy Eyeballs has nothing to do with it. This is a server misconfiguration
plain and simple.
I meant that it seems that v4 is broken, but v6 is not.
Other way around.
I disabled IPv6 on my machine and was able to pull it up, reenable IPv6 and
I start getting 404's.
On Wed, Oct 29, 2014 at 3:36 PM, Christopher Morrow wrote:
> On Wed, Oct 29, 2014 at 11:36 AM, Doug Barton wrote:
> > Happy Eyeballs has nothing to do with it. This is a server
> misconfiguration
On Wed, Oct 29, 2014 at 11:36 AM, Doug Barton wrote:
> Happy Eyeballs has nothing to do with it. This is a server misconfiguration
> plain and simple.
>
I meant that it seems that v4 is broken, but v6 is not.
so sure, it's a server thing, but he's seeing different results maybe
as a side effect o
Happy Eyeballs has nothing to do with it. This is a server
misconfiguration plain and simple.
Doug
On 10/29/14 11:30 AM, Christopher Morrow wrote:
On Wed, Oct 29, 2014 at 11:19 AM, Brian Christopher Raaen
wrote:
That is interesting as the computer I am using is on dual-stack, and I am
proba
On Wed, Oct 29, 2014 at 11:19 AM, Brian Christopher Raaen
wrote:
> That is interesting as the computer I am using is on dual-stack, and I am
> probably using IPv6 to reach it.
>
"happy eyeballs"
> On Wed, Oct 29, 2014 at 1:56 PM, Stefan Bethke wrote:
>
>> Seems to be working over IPv4, not over
Also getting a 404 over IPv6. You can verify what transport we're using
in Firefox using the SixorNot plugin.
hth,
Doug
That is interesting as the computer I am using is on dual-stack, and I am
probably using IPv6 to reach it.
On Wed, Oct 29, 2014 at 1:56 PM, Stefan Bethke wrote:
> Seems to be working over IPv4, not over IPv6.
>
> $ curl -6 http://tf.nist.gov/tf-cgi/servers.cgi 2>/dev/null | head -5
>
>
> 404 N
Seems to be working over IPv4, not over IPv6.
$ curl -6 http://tf.nist.gov/tf-cgi/servers.cgi 2>/dev/null | head -5
404 Not Found
Not Found
$ curl -4 http://tf.nist.gov/tf-cgi/servers.cgi 2>/dev/null | head -5
NIST Internet Time Service
> Am 29.10.2
> Am 29.10.2014 um 18:14 schrieb Brian Christopher Raaen
> :
>
> The list of NIST NTP servers is down for me, is anyone else seeing this?
> I'm getting a 404 error
> http://tf.nist.gov/tf-cgi/servers.cgi
404 from Kabel Deutschland reaching tf.nist.gov via AS1273, a small hoster in
Hamburg, Germ
- Original Message -
> From: "Brian Butler"
> > I'm getting a 404 error
> > http://tf.nist.gov/tf-cgi/servers.cgi
Add me to the list of "it works" people.
> I concur, that URL results in 404 for me too. Much content which had
> been reliably available at http://tf.nist.gov and
> http://
It's up from Vancouver, Canada. No 404 from here.
On Wed, Oct 29, 2014 at 10:16 AM, Stuart Sheldon wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
> Yeah, it looks like it's down
>
> stu
>
>
>
> On 10/29/2014 10:14 AM, Brian Christopher Raaen wrote:
> > The list of NIST NTP servers
On 10/29/2014 12:14 PM, Brian Christopher Raaen wrote:
> The list of NIST NTP servers is down for me, is anyone else seeing this?
> I'm getting a 404 error
> http://tf.nist.gov/tf-cgi/servers.cgi
I concur, that URL results in 404 for me too. Much content which had
been reliably available at http
I'm still getting a 404. I am using a Windstream backbone, is this maybe
path/server specific. Here is a dig.
dig tf.nist.gov
; <<>> DiG 9.9.5-3-Ubuntu <<>> tf.nist.gov
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46860
;; flags: qr rd ra; QUERY: 1,
Try again.
Just worked fine for me.
On Wed, 29 Oct 2014 10:16:58 -0700
Stuart Sheldon wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Yeah, it looks like it's down
stu
On 10/29/2014 10:14 AM, Brian Christopher Raaen wrote:
The list of NIST NTP servers is down for me, is anyone els
http://downforeveryoneorjustme.com/http://tf.nist.gov/tf-cgi/servers.cgi
No, it's not
On Wed, 29 Oct 2014 10:16:58 -0700
Stuart Sheldon wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
> Yeah, it looks like it's down
>
> stu
>
>
>
> On 10/29/2014 10:14 AM, Brian Christopher Ra
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Yeah, it looks like it's down
stu
On 10/29/2014 10:14 AM, Brian Christopher Raaen wrote:
> The list of NIST NTP servers is down for me, is anyone else seeing this?
> I'm getting a 404 error
> http://tf.nist.gov/tf-cgi/servers.cgi
>
- --
"No pr
The list of NIST NTP servers is down for me, is anyone else seeing this?
I'm getting a 404 error
http://tf.nist.gov/tf-cgi/servers.cgi
--
Brian Christopher Raaen
Network Architect
Zcorum
On Mon, 25 Oct 2010, Robert E. Seastrom wrote:
The folks at NRC in Canada will do cryptographically authenticated NTP
with you for an annual fee. I have no idea if there is something
Robert,
Thanks for the shout. NRC does do this, more info here:
http://www.nrc-cnrc.gc.ca/eng/servic
On Sun, Oct 24, 2010 at 09:49:31AM -0700, Seth Mattinen wrote:
> On 10/24/2010 09:26, Brandon Kim wrote:
> >
> > Wow that is amazing and quite impressive that you even run the antenna
> > linesinteresting..do you have to pay for the GPS service?
> >
>
>
> Make your own simple GPS NTP c
On 24 Oct 2010, at 18:28, Christopher Morrow wrote:
> On Sun, Oct 24, 2010 at 1:24 PM, Joel Jaeggli wrote:
>> On 10/24/10 10:20 AM, Christopher Morrow wrote:
>>> On Sun, Oct 24, 2010 at 10:44 AM, Peter Lothberg wrote:
>
>>>> How do you knew that your loca
> On 25/10/2010 15:56, Joe Greco wrote:
> > Four is, IMHO, the best number of servers to have. They do not need to be
> > fast or modern machines.
>
> They do need to have a somewhat unbroken internal clock.
That's a good point.
> This tends to mean that running ntp on a VM is not generally a g
On 25/10/2010 15:56, Joe Greco wrote:
> Four is, IMHO, the best number of servers to have. They do not need to be
> fast or modern machines.
They do need to have a somewhat unbroken internal clock.
This tends to mean that running ntp on a VM is not generally a good idea.
Nick
> On Sun, 24 Oct 2010, George Bonser wrote:
> > The main reason for that is that the "free" servers won't remain "free"
> > if every single individual host on the Internet is hitting them. By
> > running your own internal servers a stratum down you offload that
> > traffic from the public servers
Leo Bicknell writes:
> For instance, for a couple of thousand dollars you can get a
> Symmetricom appliance that will do GPS timing with analog dial
> backup to NIST. That gives you two non-internet sources at relatively
> low cost and low effort. Deploy four in different POP's and you
> have
On Sun, 24 Oct 2010 20:15:56 -0400
Brandon Kim wrote:
> I have heard that routers don't make good NTP servers since they
> weren't designed to keep track of time. This, I have read from a
> Cisco source. Can't remember where though. Or maybe they were just
> referring to older less powerful route
On Sun, 24 Oct 2010, Brandon Kim wrote:
By local I meant in-house, on-site in our datacenter.
What do you think it means to have a NTP server in-house, on-site in your
datacenter? There all many different levels of NTP servers.
Putting some free software on a spare computer, and
Complete WOB, but I whenever people start talking about NTP, I always
start trying to figure out how I could justify one of these for the data
center:
http://www.inovasolutions.com/network-clocks/products/analog-network-clocks.htm
(PoE, SNTP, ANALOG clock)
jms
--
Joel M Snyder, 1404 East Lin
On Sun, 24 Oct 2010, Cutler James R wrote:
In my experience, a reliable NTP peer group can be implemented on the
same set of boxes as DNS (bind, etc.) with little or no impact on DNS
performance. If you can count to four or more, you can make a reliable
peer group of time servers.
There are l
> Date: Sun, 24 Oct 2010 14:18:18 -0400
> From: David Andersen
> Subject: Re: NTP Server
(...)
> If you find yourself needing really precise time with good guarantees,
> you're not just talking about buying one GPS unit -- you can easily go
> down a rathole of finding m
On Mon, 25 Oct 2010, Dobbins, Roland wrote:>
On Oct 25, 2010, at 3:48 AM, Matthew Petach wrote:
NTP can potentially be used as a DoS vector by your upstream clocks,
if you're not running your own.
+1
Also, if you experience a network partition event for any reason (DDoS
attack, backhoe attack
Nowadays is not that difficult to get off the shelf solutions for
different applications.
Just to point to one:
http://www.symmetricom.com/products/ntp-servers/ntp-network-appliances/
Regards
Jorge
an't remember where though. Or maybe they were just
> referring to older less powerful routers like 2500 series...
>
> Brandon
>
>
>
>
>
>
>> Date: Sun, 24 Oct 2010 14:42:24 -0400
>> From: s...@donelan.com
>> To: nanog@nanog.org
>> Su
On Oct 25, 2010, at 3:48 AM, Matthew Petach wrote:
> NTP can potentially be used as a DoS vector by your upstream clocks, if
> you're not running your own.
+1
Also, if you experience a network partition event for any reason (DDoS attack,
backhoe attack, et. al.) which disrupts communications
Regarding leap seconds:
A modern OS kernel using the NTP daemon to control time will always experience
monotonic time. Negative leap seconds should result in the local clock slowing
slightly until the local time matches the NTP-derived time.
This is in strong contrast to what can happen when nt
010 14:42:24 -0400
> From: s...@donelan.com
> To: nanog@nanog.org
> Subject: Re: NTP Server
>
> On Sun, 24 Oct 2010, Brandon Kim wrote:
> > 1) How necessary do you believe in local NTP servers? Do you really
> > need the logs to be perfectly accurate?
> > 2) If y
On 10/24/2010 7:37 PM, Peter Lothberg wrote:
>> acquired the time from the three stratum-1 clocks, they all poll each other
>> for the average.
>
> How many clocks/servers do you need to average from to knew that you
> are within say 1ms of UTC(nist)?
What type of evidence model do you need to p
On 10/24/2010 2:14 PM, Steven Hill wrote:
> On Sun, 24 Oct 2010, Christopher Morrow wrote:
>
>>> How do you knew that your local NTP server knew what time it is?
>>> (for sure)
Because you got the time service from an authoritative source who did
the rest of the work t
On Sun, 24 Oct 2010, Christopher Morrow wrote:
How do you knew that your local NTP server knew what time it is? (for sure)
this question is a trap.
Quite.
We had 2 HP 5071s,(+ several GPS standards) and at the time being the
definition of a second, either could be correct at any time
On Oct 24, 2010, at 4:48 PM, Matthew Petach wrote:
> On Sun, Oct 24, 2010 at 8:34 AM, Brandon Kim
> wrote:
>>
>> Hey guys:
>>
>> I wanted to open up this question regarding NTP server. I recalled someone
>> had created a posting of this quite awhile b
On Sun, Oct 24, 2010 at 8:34 AM, Brandon Kim wrote:
>
> Hey guys:
>
> I wanted to open up this question regarding NTP server. I recalled someone
> had created a posting of this quite awhile back.
> >From a service provider/ISP standpoint, does anyone think that having a
&
> From: Peter Beckman
> Sent: Sunday, October 24, 2010 11:33 AM
> To: North American Network Operators Group
> Subject: RE: NTP Server
>
> On Sun, 24 Oct 2010, George Bonser wrote:
> It sure would be nice if datacenter facilities offered an
independent
> NTP
> t
On Sun, 24 Oct 2010, Brandon Kim wrote:
1) How necessary do you believe in local NTP servers? Do you really
need the logs to be perfectly accurate?
2) If you do have a local NTP server, is it only for local internal
use, or do you provide this NTP server to your clients as an added
service?
3
On Sun, 24 Oct 2010, George Bonser wrote:
The main reason for that is that the "free" servers won't remain "free"
if every single individual host on the Internet is hitting them. By
running your own internal servers a stratum down you offload that
traffic from the public servers and preserve th
> i would generally let customers chime off routers which are strat 2 or
> 3. if a customer has other needs, then they can deal. if they are
> really concerned, they should not bet on me anyway.
>
> > 3) If you do have a local NTP server, do you have a standby local
NTP
&
On Oct 24, 2010, at 1:09 PM, Randy Bush wrote:
>> 1) How necessary do you believe in local NTP servers? Do you really
>> need the logs to be perfectly accurate?
>
> what is "perfectly accurate?" perfection is not very realistic. to
> what use do you put these logs? what precision and jitter
Looks like you have a pretty good setup. What vendor equipment are you using?
You can let me know offline so it doesn't
sound like you're advertising them
> Date: Sun, 24 Oct 2010 11:03:18 -0600
> From: br...@2mbit.com
> To: nanog@nanog.org
> Subject: Re: NTP Ser
brandontek.com
> CC: nanog@nanog.org
> Subject: Re: NTP Server
>
> > 1) How necessary do you believe in local NTP servers? Do you really
> >need the logs to be perfectly accurate?
>
> what is "perfectly accurate?" perfection is not very realistic. to
&g
> acquired the time from the three stratum-1 clocks, they all poll each other
> for the average.
How many clocks/servers do you need to average from to knew that you
are within say 1ms of UTC(nist)?
-P
On 10/24/10 10:25 AM, John Kristoff wrote:
> The "perfect accuracy" of log files might be hard to justify and
> quantify.
more to the point what's the minimum resolution of a counter in a log
file, if it's 1s or 1ms it's a bit different than if it's 1us.
On Sun, Oct 24, 2010 at 1:24 PM, Joel Jaeggli wrote:
> On 10/24/10 10:20 AM, Christopher Morrow wrote:
>> On Sun, Oct 24, 2010 at 10:44 AM, Peter Lothberg wrote:
>>> How do you knew that your local NTP server knew what time it is? (for sure)
>>
>> this question
On Sun, 24 Oct 2010 11:34:12 -0400
Brandon Kim wrote:
> I wanted to open up this question regarding NTP server. I recalled
> someone had created a posting of this quite awhile back.
> >From a service provider/ISP standpoint, does anyone think that
> >having a local NT
On 10/24/10 10:20 AM, Christopher Morrow wrote:
> On Sun, Oct 24, 2010 at 10:44 AM, Peter Lothberg wrote:
>>> 1) How necessary do you believe in local NTP servers? Do you really need th=
>>> e logs to be perfectly accurate?
>>> 2) If you do have a local NTP server=2C
uilds, etc.
>
> It is simple enough to do for a five node home network. It is almost that
> simple for a network with hundreds of thousands of client nodes. I've done
> both.
>
>
> On Oct 24, 2010, at 12:29 PM, Brandon Kim wrote:
>
> >
> > I guess what I'
On 10/24/2010 12:29 PM, Brandon Kim wrote:
I guess what I'm trying to understand is, is having your own NTP server just a
luxury?
I personally would like to have my own, I just need to pitch its advantages to
my company. Unless everyone here on the NANOG group
clearly spells it out to me
In a message written on Sun, Oct 24, 2010 at 11:34:12AM -0400, Brandon Kim
wrote:
>From a service provider/ISP standpoint, does anyone think that having a local
>NTP server is really necessary?
Do you provide NTP to your customers?
If you do there is probably an obligation there to
On Sun, Oct 24, 2010 at 10:44 AM, Peter Lothberg wrote:
>> 1) How necessary do you believe in local NTP servers? Do you really need th=
>> e logs to be perfectly accurate?
>> 2) If you do have a local NTP server=2C is it only for local internal use=
>> =2C or do you pr
imiho, if you are just comparing router and server log files, run off
> public. if you are trying to do fine-grained measurement, you are going
> to invest a lot in clock and propagation research.
>
> > 2) If you do have a local NTP server, is it only for local internal
> >
Time Service is more complicated than just having a single NTP server. But it
can be useful and is not really a luxury.
Two primary reasons for local time service are to reliably serve a network that
is relatively or completely isolated from the general internet, and, to provide
a local time
if you are just comparing router and server log files, run off
public. if you are trying to do fine-grained measurement, you are going
to invest a lot in clock and propagation research.
> 2) If you do have a local NTP server, is it only for local internal
>use, or do you provide this NTP
On 10/24/10 9:34 AM, Brandon Kim wrote:
I wanted to open up this question regarding NTP server. I recalled
someone had created a posting of this quite awhile back.
From a service provider/ISP standpoint, does anyone think that
having a local NTP server is really necessary?
It may not be
On 10/24/2010 09:26, Brandon Kim wrote:
>
> Wow that is amazing and quite impressive that you even run the antenna
> linesinteresting..do you have to pay for the GPS service?
>
Make your own simple GPS NTP clock source:
http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm
~Seth
I guess what I'm trying to understand is, is having your own NTP server just a
luxury?
I personally would like to have my own, I just need to pitch its advantages to
my company. Unless everyone here on the NANOG group
clearly spells it out to me that it's a luxury.
I can see it a
Wow that is amazing and quite impressive that you even run the antenna
linesinteresting..do you have to pay for the GPS service?
> Subject: Re: NTP Server
> To: brandon@brandontek.com
> From: jkre...@usinternet.com
> Date: Sun, 24 Oct 2010 15:52:03 +
>
&g
On 25/10/10 2:55 AM, Eugen Leitl wrote:
>
> For those you care about that:
>
> http://leapsecond.com/time-nuts.htm
Wow ... that's a lot more effort than I'm willing to put in on a time
server.
Regards,
Ben
signature.asc
Description: OpenPGP digital signature
On Mon, Oct 25, 2010 at 02:51:24AM +1100, Ben McGinnes wrote:
> > How do you knew that your local NTP server knew what time it is? (for sure)
>
> By polling as many stratum 1 and 2 time servers as possible. Having
> your own stratum 2 server(s) beats nebulous NTP servers out i
On 24/10/10 5:44 PM, Peter Lothberg wrote:
>
> How do you knew that your local NTP server knew what time it is? (for sure)
By polling as many stratum 1 and 2 time servers as possible. Having
your own stratum 2 server(s) beats nebulous NTP servers out in the big
bad Internet ever
> 1) How necessary do you believe in local NTP servers? Do you really need th=
> e logs to be perfectly accurate?
> 2) If you do have a local NTP server=2C is it only for local internal use=
> =2C or do you provide this NTP server to your clients as an added service?
> 3) If you
Hey guys:
I wanted to open up this question regarding NTP server. I recalled someone had
created a posting of this quite awhile back.
>From a service provider/ISP standpoint, does anyone think that having a local
>NTP server is really necessary?
I've asked some of my fellow engine
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