Re: [ntp:questions] How to get a list of > 500 ntp clients

2019-08-13 Thread Mike Cook
Are you using a standard dist? ntpq -c mru gives you the client list. The list length and size can be tailored: ex: # mru [maxdepth count | maxmem kilobytes | mindepth count | maxage seconds | initalloc count | initmem kilobytes | incalloc count | incmem kilobytes] mru mindepth 5 maxdepth

Re: [ntp:questions] Garmin 18x LVC - degraded precision ?

2019-08-07 Thread Mike Cook
Hi, It’s possibly on the way out. I don’t have an 18x but can get badformat showing if I pull the antenna on a NMEA source. Another possibility, it could be that you have a GPS jammer in the vicinity. If you run your cv command in a loopover a day you may see some pattern in the badformat

Re: [ntp:questions] Time server question

2019-07-24 Thread Mike Cook
> Le 24 juil. 2019 à 11:19, William Unruh a écrit : >> >> The hardware under consideration can time the pulse arrivals more >> precisely than the interrupt delivery time, thanks to special hardware. That tickled a grey cell. There was/is a timing product family bc635/637 time and frequency

Re: [ntp:questions] ntp-client does not sync with server

2019-03-21 Thread Mike Cook
2019 14:23:59.170907972 UTC > > At the moment I tried it with debian stretch as server, but the problem is > the same :( > > > On Monday, March 18, 2019 5:18:32 PM CET Mike Cook wrote: >> I don’t have these versions but I would suspect some DNS/routing issue. Have >> yo

Re: [ntp:questions] ntp-client does not sync with server

2019-03-18 Thread Mike Cook
I don’t have these versions but I would suspect some DNS/routing issue. Have you tried tcpdump or other packet tracing to see if you are getting any ntp packets back. Your nmap response has an ip resolution for timeserv.domain.ag as 194.94.xxx.xxx but this net dress is not used in the working

Re: [ntp:questions] Judged falsetickers under NTPD version 4.2.0.

2019-01-14 Thread Mike Cook
> Le 9 janv. 2019 à 22:52, chorowit...@scarsdaleschools.org a écrit : > > On Wednesday, March 3, 2004 at 11:38:29 PM UTC-5, Yoshinobu Onozuka wrote: >> Hello, >> >> >> >> I was using NTPD referring to two timeservers like the following setting. >> >> The contents of ntp.conf >> >> Server

Re: [ntp:questions] Initial sync on starting ntpd with 20-21 minute time difference

2018-09-26 Thread Mike Cook
Karen, > > Before restarting ntpd you could use ntpdate to set the clock using the -B > option to slew, rather than step, the clock to the correct time before > restarting ntpd, but your offset is so large (1260 secs), that this may take > a long time to complete. > > On an Arm/Linux system I

Re: [ntp:questions] Initial sync on starting ntpd with 20-21 minute time difference

2018-09-26 Thread Mike Cook
Karen, > Le 24 sept. 2018 à 12:19, Karen Austin a écrit : > > Hi, > > We have a RH 6.8 server with ntpd installed, but not currently running. > > The time on this server is showing around 20-21 minutes ahead. > > The server has been restarted and the messages log shows a successful ntpd >

Re: [ntp:questions] Regular spike_detect on syslog

2018-09-16 Thread Mike Cook
> Le 16 sept. 2018 à 16:34, Jan Ceuleers a écrit : > > On 16/09/18 14:15, Sean Austin Critica wrote: >> >> >> Can I directly observe these sources and see which ones are stable >> (maybe by dumping them periodically, remotely from a machine with a >> known stable clock)? The OS in this case

Re: [ntp:questions] Regular spike_detect on syslog

2018-09-16 Thread Mike Cook
> Le 16 sept. 2018 à 16:34, Jan Ceuleers a écrit : > > " People have only as much liberty as they have the intelligence to want and the courage to take. Emma Goldman ___ questions mailing list questions@lists.ntp.org

Re: [ntp:questions] Regular spike_detect on syslog

2018-09-15 Thread Mike Cook
> Le 14 sept. 2018 à 10:50, Sean Austin Critica a > écrit : > > Hello, > > > I'm new to configuring NTP, and am having a bit of trouble figuring out why > there are regular spike_detect messages on my syslog. > > I already checked the connection to the NTP server and it is stable with no >

Re: [ntp:questions] restrict: ignoring line %u, address/host '%s' unusable.

2018-09-14 Thread Mike Cook
Maybe you could show us the config lines that are causing your issue. IP4 and IP6 network and IP specific restrict config lines are not causing these messages on my deb+p10 config. It is deb7 however so maybe you should be talking to a Debian maintainer. Has your issue appeared with a Debian

Re: [ntp:questions] NTPd in embedded application slow to serve/sync time.

2018-08-16 Thread Mike Cook
> > > Anything else I can do to speed up the server to being happy about giving out > time? The usual method is to give it a good starting time at boot. You can too that by adding a battery (or cap) backed RTC chip and setting the system clock to that time before NTP starts. That will

Re: [ntp:questions] How can i make sure that how much time ntp is adjusting one day

2018-08-07 Thread Mike Cook
> Le 6 août 2018 à 03:06, William Unruh a écrit : > > On 2018-08-05, aashish.ch...@fonantrix.com > wrote: >> Hi, >> >> I am facing time drifting problem in my production env. When face with this or any problem you should measure it BEFORE applying corrections. I have seen many admins just

Re: [ntp:questions] long time to report sync per leap indicator, when initial system time is set far into the future

2017-12-13 Thread Mike Cook
> Le 13 déc. 2017 à 08:57, Mike Cook <michael.c...@sfr.fr> a écrit : > > > ntpq: read: Connection refused > Wed Dec 13 06:50:30 UTC 2017 > associd=0 status=c016 leap_alarm, sync_unspec, 1 event, restart, > version="ntpd 4.2.8p10@1.3728-o Tue Dec 12 08:45:23 UT

Re: [ntp:questions] long time to report sync per leap indicator, when initial system time is set far into the future

2017-12-12 Thread Mike Cook
> Le 12 déc. 2017 à 23:17, Mike Cook <michael.c...@sfr.fr> a écrit : > >> >> (servers #4 ff. are assigned from pool.ntp.org) >> >> But, even then, from "eyeballing" the system clock it appears correct within >> at least 1 s, > >

Re: [ntp:questions] long time to report sync per leap indicator, when initial system time is set far into the future

2017-12-12 Thread Mike Cook
> Le 12 déc. 2017 à 17:31, Stephan E. a écrit : > > > During that waiting period, I get a status of e.g. > ># ./ntpq -c peers > remote refid st t when poll reach delay offset > jitter > >

Re: [ntp:questions] long time to report sync per leap indicator, when initial system time is set far into the future

2017-12-12 Thread Mike Cook
> Le 11 déc. 2017 à 12:49, Stephan E. a écrit : > > I want ntpd 4.2.8p10 to sync to public servers, then serve time to a local > network. It is running with '-g' because initial system time on the host can > be far off. I observe that, when initial system time of the

Re: [ntp:questions] How to keep fake time in past/future?

2017-12-05 Thread Mike Cook
> Le 5 déc. 2017 à 18:04, William Unruh a écrit : > > On 2017-12-05, romain.cordonn...@gmail.com > wrote: >> Hi All, >> >> I have the same need as Cristian. >> >> I am working on a data processing project which is designed to run for 25 >>

Re: [ntp:questions] Problems with Sure OEM pps gps

2017-11-18 Thread Mike Cook
> Le 18 nov. 2017 à 22:55, William Unruh a écrit : > > I am having sudden problems on my system with a Sure GPS with PPS. > I am running chrony, using a serial port to bring in the PPS signal. > Everything was working well-- the rms timing on the pulse was about 1usec. >

Re: [ntp:questions] source code kernel driver (linux or freebsd) for symmetricom bc635PCI ?

2017-09-29 Thread Mike Cook
> Le 28 sept. 2017 à 16:58, Fiorenzo Cattaneo a écrit : > > BC635PCI There is a C/C++ linux kit . see Seems to include device driver and API. maybe that has what you want.

Re: [ntp:questions] NTPv1 queries

2017-08-24 Thread Mike Cook
> Le 23 août 2017 à 17:56, Nikolay Stoyanov a écrit : > > Hello , > > i receive many requests "NTPv1, unspecified, length 48". > > What is reason some devices to use tool old protocol version or they maybe > use buggy software ? This has been seen of old. See <

Re: [ntp:questions] ***SPAM*** How to sync my system clock when there is high offset

2017-06-13 Thread Mike Cook
> Le 13 juin 2017 à 12:20, Miroslav Lichvar <mlich...@redhat.com> a écrit : > > On Fri, Jun 09, 2017 at 04:28:07PM +0200, Mike Cook wrote: >>> Le 9 juin 2017 à 12:52, Ashish Kurian <ashish...@gmail.com> a écrit : >>> In my ntpq -p output, I see that th

Re: [ntp:questions] ***SPAM*** How to sync my system clock when there is high offset

2017-06-09 Thread Mike Cook
> Le 9 juin 2017 à 12:52, Ashish Kurian a écrit : > > Hi Folks, > > In my ntpq -p output, I see that the offset is around 70 milli second. How > can I force my system clock to sync with the NTP server time. If I wait for > a day, I know that the value will come down, but

Re: [ntp:questions] ipsntp_query_time failing with IPCOM_ERR_FAILED

2017-06-09 Thread Mike Cook
> Le 9 juin 2017 à 12:02, sneha b a écrit : > > Basically I want to reduce this 4.5 to something less. > And also want to know why do we get *IPCOM_ERR_FAILED.* > From what I can see this is a proprietary vxworks error status message. Google threw up :

Re: [ntp:questions] ntp client does not sync with server after nic down and up

2017-06-06 Thread Mike Cook
> Le 5 juin 2017 à 11:06, 稻草人/nl <1227870...@qq.com> a écrit : > > hi,guys > > > i have a ntp server and client on suse with v 4.2.8p10. both server and > client have two ip in the same subnet, and client use this 2 ip sync with > server,after long time test(8hours for ifconfig down and

Re: [ntp:questions] Looking for a NTP stratum 2 appliance

2017-05-26 Thread Mike Cook
> Le 26 mai 2017 à 11:35, Matthew Huff a écrit : > > The OXCO oscillator requirement is for hold-over, but we are looking for less > jitter in the system. We could strip down the OS machines and run only NTP > and make other system adjustments that would accomplish much of the

Re: [ntp:questions] Monitoring Number of Clients

2017-05-18 Thread Mike Cook
> Le 17 mai 2017 à 10:42, Johannes Weber a écrit : > > Hi list, > > some months ago I asked about NTP monitoring. Thanks for your answers! > > I tried Brians' version which sets some mru parameters. But it's not > working as I expected. Does anyone see my mistake? >

Re: [ntp:questions] Can I stop authenticated peers from mobilizing symmetric associations

2017-03-09 Thread Mike Cook
> > > Now assume that one of the remote NTP clients turns bad, deliberately > configures forged time, and enters "peer " in its > ntp.conf. This (correct me if I'm wrong) creates a dynamic mobilization with > my local NTP server, and my local NTP server will eventually believe in the >

Re: [ntp:questions] Registering a new reference clock driver to NTP4

2017-02-21 Thread Mike Cook
AFAIK no new ref clock integrations are being accepted at this time. Check with Harlen Stenn ( st...@nwtime.org ) who will know. What is needed is an Interface Description Language to enable one driver to handle all clocks. Then it would only need a « refclock.conf » > Le 21 févr. 2017 à

Re: [ntp:questions] Monitoring Number of Clients

2017-02-07 Thread Mike Cook
> Le 6 févr. 2017 à 21:10, Johannes Weber a écrit : > > Hello NTP list, > > I have one question concerning the monstats and mrulist commands. I am > monitoring my NTP servers and I want to graph the current clients. I am > using the "addresses" line from the monstats

Re: [ntp:questions] 1000s offset between GPS module and NTP servers

2017-01-23 Thread Mike Cook
Harlen’s idea may be right. If your GPS is seeing a lot of SVs then the NMEA stream can overrun the second. The time used is that of the end of the the first recognized NMEA sentence containing the time field in the cycle. If you are able to send the commands necessary, you can limit the data

Re: [ntp:questions] Sync system time with pixhawk autopilot

2016-11-04 Thread Mike Cook
> Le 4 nov. 2016 à 02:33, Jason Beach a écrit : > > I am working on a multicopter that is flown by a pixhawk autopilot and also > a Jetson TK1 running Ubuntu (both onboard the vehicle). I am trying to > figure out how best to synchronize the time between the two boards.

Re: [ntp:questions] ***SPAM*** ntpd reporting as stratum 16 despite fudge stratum 10

2016-05-11 Thread Mike Cook
> Le 10 mai 2016 à 09:29, Nicolas Bock a écrit : > > Hi, > > I have configured ntpd to serve as the time source for the local network: > > server 127.127.1.0 minpoll 3 burst > fudge 127.127.1.0 stratum 10 > > Despite the fudge stratum, upon a repoot ntpd reports itself

Re: [ntp:questions] ntpd sensitivity to ordering of servers in ntp.conf?

2016-02-26 Thread Mike Cook
> Le 25 févr. 2016 à 14:13, Miroslav Lichvar a écrit : > > On Thu, Feb 25, 2016 at 02:49:48AM -0800, Weber wrote: >> ntp.conf is specifies both servers with minpoll 4/maxpoll 4. Peer and loop >> statistics are enabled. > >> By just changing the order of servers in ntp.conf

Re: [ntp:questions] custom NMEA messages

2015-12-26 Thread Mike Cook
If you look at the doc <> you will see that your message is not supported, so you would have to modify the driver. However I suspect that you also have some standard sentences as well as these beast are supposed to work with GPSD

Re: [ntp:questions] ***SPAM*** NTP throwing error 'kod_init_kod_db(): Cannot open KoD db file /var/db/ntp-kod: No such file or directory'

2015-12-01 Thread Mike Cook
my guess is that you don’t have /var/db . > Le 1 déc. 2015 à 08:31, Keshav B a écrit : > > Hi Team, > > The base kernel that was shipped with SLES 11 SP4 is 3.0.101-63-default. > I'm trying to use sntp command from the machine and got the following error > as below >

Re: [ntp:questions] NTP throwing error 'kod_init_kod_db(): Cannot open KoD db file /var/db/ntp-kod: No such file or directory'

2015-12-01 Thread Mike Cook
My guess is that you don’t have /var/db. > Le 1 déc. 2015 à 08:31, Keshav B a écrit : > > Hi Team, > > The base kernel that was shipped with SLES 11 SP4 is 3.0.101-63-default. > I'm trying to use sntp command from the machine and got the following error > as below >

Re: [ntp:questions] NTP not syncing immediately

2015-09-19 Thread Mike Cook
Can’t remember who the OP was… The original ntp.conf, if that was all the entries reference just the local clock so why start ntp at all. There will be no disciplining anyway. That aside I have just run some tests on a non windows machine and don’t see the issue, unless you are saying that you

Re: [ntp:questions] what's the matter with my ntp

2015-09-06 Thread Mike Cook
onfigured or disabled in ntp.conf. See the man page tinker option. > > -- 原始邮件 -- > 发件人: "Mike Cook";<michael.c...@sfr.fr>; > 发送时间: 2015年8月29日(星期六) 下午4:41 > 收件人: "Mike Cook"<michael.c...@sfr.fr>; > 抄送: "※踏梦狼※"&

Re: [ntp:questions] what's the matter with my ntp

2015-08-31 Thread Mike Cook
is being sync’d to the servers. I still would look at your config first and try and find out what clients are seeing issues and which are not and list the differences between them. Something will pop out of that to point to a probably cause. > > thanks > > -- 原始邮

Re: [ntp:questions] what's the matter with my ntp

2015-08-30 Thread Mike Cook
Le 30 août 2015 à 05:26, Brian Inglis brian.ing...@systematicsw.ab.ca a écrit : On 2015-08-29 15:23, Mike Cook wrote: Le 29 août 2015 à 17:41, Charles Swiger cswi...@mac.com a écrit : On Aug 29, 2015, at 1:03 AM, Mike Cook michael.c...@sfr.fr wrote: For me this would not be considered

Re: [ntp:questions] what's the matter with my ntp

2015-08-29 Thread Mike Cook
snip For me this would not be considered acceptable. I would NEVER have ntp servers in virtual machines. Especially if they are LAN primary servers. The figures for delay and Oops… I meant offset. delay is not an issue unless it is highly variable, indicating asymmetric path length and

Re: [ntp:questions] what's the matter with my ntp

2015-08-29 Thread Mike Cook
infrastructure. If this is a large business environment, recommend the installation of dedicated primary time servers using reference clocks, GPS for example. -- 原始邮件 -- 发件人: Mike Cook;michael.c...@sfr.fr; 发送时间: 2015年8月28日(星期五) 晚上7:36 收件人: ※踏梦狼※121156

Re: [ntp:questions] what's the matter with my ntp

2015-08-29 Thread Mike Cook
Le 29 août 2015 à 17:41, Charles Swiger cswi...@mac.com a écrit : On Aug 29, 2015, at 1:03 AM, Mike Cook michael.c...@sfr.fr wrote: For me this would not be considered acceptable. I would NEVER have ntp servers in virtual machines. +1 to this point. Your maxpoll default of 10(1024s

Re: [ntp:questions] what's the matter with my ntp

2015-08-29 Thread Mike Cook
errata: The 2 clients reference 4 identical servers with the same versions of ntpd, all 4 have GPS PPS ref clocks in addition to their PPS refs and preferred GPS sync’d server. All servers are on the same LAN segment as the clients. These servers are configured with maxpoll 10 on bb2,

Re: [ntp:questions] what's the matter with my ntp

2015-08-28 Thread Mike Cook
Le 28 août 2015 à 04:52, ※踏梦狼※ 121156...@qq.com a écrit : 20 Aug 12:42:52 ntpd[14554]: 0.0.0.0 c618 08 no_sys_peer 20 Aug 12:58:17 ntpd[14554]: 0.0.0.0 c612 02 freq_set kernel -586.374 PPM * 20 Aug 12:58:17 ntpd[14554]: 0.0.0.0 c61c 0c clock_step -0.522594 s 20 Aug 12:58:17

Re: [ntp:questions] what's the matter with my ntp

2015-08-28 Thread Mike Cook
, but may be « stepped » rather than « slewed ». thanks -- 原始邮件 -- 发件人: Mike Cook;michael.c...@sfr.fr; 发送时间: 2015年8月28日(星期五) 下午5:59 收件人: ※踏梦狼※121156...@qq.com; 抄送: questionsquestions@lists.ntp.org; 主题: Re: [ntp:questions] what's the matter with my ntp Le

Re: [ntp:questions] what's the matter with my ntp

2015-08-28 Thread Mike Cook
-- 发件人: Mike Cook;michael.c...@sfr.fr; 发送时间: 2015年8月28日(星期五) 下午5:59 收件人: ※踏梦狼※121156...@qq.com; 抄送: questionsquestions@lists.ntp.org; 主题: Re: [ntp:questions] what's the matter with my ntp Le 28 août 2015 à 11:43, ※踏梦狼※ 121156...@qq.com a écrit : The ntp client have stand

Re: [ntp:questions] what's the matter with my ntp

2015-08-28 Thread Mike Cook
I should have also signaled, that if this is the only sick instance: then it might be that the drift file has a bad value to start with. That can throw ntpd. Try stopping ntpd, removing the drift file, and then restarting ntpd. Bad drift files can have the clock so badly off nominal

Re: [ntp:questions] NIST server anomaly

2015-08-25 Thread Mike Cook
Le 26 août 2015 à 00:37, Nathan Stratton Treadway nathanst+ntp-questi...@ontko.com a écrit : snipped Did you ever figure out what was going on here? I noticed that the output you quoted from your second server looks simarly to what I get from my server... but the output you show

Re: [ntp:questions] iburst and NIST servers AND NIST server anomaly

2015-08-03 Thread Mike Cook
jitter. Charles Elliott -Original Message- From: questions [mailto:questions- bounces+elliott.ch=comcast@lists.ntp.org] On Behalf Of Mike Cook Sent: Sunday, August 2, 2015 5:32 AM To: Questions List Subject: [ntp:questions] iburst and NIST servers Hi, Can anyone confirm

[ntp:questions] NIST server anomaly

2015-08-02 Thread Mike Cook
While modifying a couple of servers ntp configs to test their UT1 service I noticed the following that seem odd. If anyone has seen the same I would like to know and if there are plausible explanations I would also be interested. The issue pertains to server time-c.nist.gov (129.6.15.30) which

Re: [ntp:questions] iburst and NIST servers

2015-08-02 Thread Mike Cook
, at 2:31 AM, Mike Cook michael.c...@sfr.fr wrote: Can anyone confirm that this is an issue? I habitually put an burst directive in my ntp.conf server statements. ex: server 129.6.15.30 noselect iburst minpoll 4 maxpoll 6 server 128.138.140.44 noselect iburst minpoll 4 maxpoll 6 server

[ntp:questions] iburst and NIST servers

2015-08-02 Thread Mike Cook
Hi, Can anyone confirm that this is an issue? I habitually put an burst directive in my ntp.conf server statements. ex: server 129.6.15.30 noselect iburst minpoll 4 maxpoll 6 server 128.138.140.44 noselect iburst minpoll 4 maxpoll 6 server 98.175.203.200 noselect iburst minpoll 4

[ntp:questions] Bug or feature? 4.2.8p3-RC1 - leap_armed not set on dynamic load of leapsecond file

2015-06-07 Thread Mike Cook
Hi, As part of getting ready for the end of the world as we know it I just upgraded a BBB to 4.2.8p3 and discovered that the leap_armed system status is not updated if a leapsecond file is loaded dynamically. Here’s the trace: I restarted ntpd after a build and installing a leap second

Re: [ntp:questions] NTP setup in time sensitive environment

2015-04-23 Thread Mike Cook
I can’t remember the previous thread but I expect you got good advice and ignored it. --- We are trying to

Re: [ntp:questions] Optimising NTP build for Raspberry Pi 2

2015-03-10 Thread Mike Cook
Le 10 mars 2015 à 19:13, Neil Green nc...@hotmail.co.uk a écrit : Thanks to everyone who gave answers to my question. David, as the GPS I use sits directly over the Pi I’ve just started a cron job to collect the CPU temperature every 10 minutes, which I’ll run for 24 hours or so, but

Re: [ntp:questions] rasperry pi, pps, false ticker

2015-03-10 Thread Mike Cook
You don’t give your config, but as using the shared memory driver works, do you have a prefer peer active when you are using the atom driver? If there isn’t one, that will cause the ref clock to be falseticker’d?. Your atom jitter isn’t the issue. Ceux qui sont prêts à abandonner une liberté

Re: [ntp:questions] Writing the drift file

2015-03-08 Thread Mike Cook
Le 6 mars 2015 à 17:39, Terje Mathisen terje.mathi...@tmsw.no a écrit : Jochen wrote such a nice synopsis that I can only add my vote for a single write of the average drift over a long time period, i.e. somthing like this: a) Collect and average the values that would have been written

Re: [ntp:questions] moving from ntpdc to ntpq

2015-02-26 Thread Mike Cook
Ceux qui sont prêts à abandonner une liberté essentielle pour obtenir une petite et provisoire sécurité, ne méritent ni liberté ni sécurité. Benjimin Franklin Le 27 févr. 2015 à 08:22, catherine.wei1...@gmail.com a écrit : On Saturday, February 7, 2015 at 11:25:02 AM UTC+8, Harlan Stenn

Re: [ntp:questions] Type 28 driver (gpsd, SHM) - understanding flag1

2015-02-21 Thread Mike Cook
Le 21 févr. 2015 à 08:37, David Taylor david-tay...@blueyonder.co.uk.invalid a écrit : Folks, I'm looking at: http://www.eecis.udel.edu/~mills/ntp/html/drivers/driver28.html and wanting to be sure that I understand flag1 correctly. The situation is starting a computer which

Re: [ntp:questions] Pool server gone wild

2015-02-21 Thread Mike Cook
Le 21 févr. 2015 à 10:00, Roger invalid@invalid.invalid a écrit : On Fri, 20 Feb 2015 19:19:43 +, Roger invalid@invalid.invalid wrote: Terje made the suggestion about too few servers. DNS returns 4 IP addresses at a time. By having four lines ntpd could have 12 different IP

Re: [ntp:questions] Pool server gone wild

2015-02-20 Thread Mike Cook
snipped The server was still in the peerstats at 18:25 the following day when I did a reboot. So, after approximately 27 hours, ntpd hadn't dropped it. Obviously, my system isn't performing as you say it should. Can you, or anyone else, provide a clue as to how I might determine if my

Re: [ntp:questions] chrony as a server

2015-02-19 Thread Mike Cook
I admit that I have not looked at the chrony code/doc and do not use it as it when I did take a look, it had no ref clock support so I don’t know what the objective is here. That said, from the current discussion I have a feeling that integrating temperature data into the clock control loop is

Re: [ntp:questions] leapseconds.list updates and ntpd

2015-02-10 Thread Mike Cook
The doc http://support.ntp.org/bin/view/Support/ConfiguringNTP#Section_6.14. says you have to, but it is describing a particular case where the config file is updated. If the file path directive is already there, would be a no brainer to add a check on the file now and again to see if it had

Re: [ntp:questions] ntpd -x and leap seconds

2015-02-09 Thread Mike Cook
As the man page for ntpd does not specifically exclude leap second ‘stepping’ from the -x behavior, I think that it could well be that the behavior that you describe is a bug. That said, it would be nice to have a -x [ policy ] option for it, with the type of slewing for the leaping day ;-) .

Re: [ntp:questions] Shared PPS source/Multiple PPS sources

2015-02-07 Thread Mike Cook
Le 7 févr. 2015 à 13:20, Jan Ceuleers jan.ceule...@computer.org a écrit : On 07/02/15 10:29, Rob wrote: I presume you meant this followup to the multi PPS sources to a single system and then it is not true either, of course our systems have at least 4 cores and they can service multiple

Re: [ntp:questions] UK pool server denying access

2015-02-06 Thread Mike Cook
This guy needs bouncing Le 30 déc. 2014 à 07:56, shalu.sysc...@gmail.com a écrit : Swimming pool Our company designs and installs deluxe indoor and outdoor swimming pools in Central and Greater London areas. More at : http://www.swimmingpoolquotes.co.uk/pool-liners/

Re: [ntp:questions] Number of Stratum 1 Stratum 2 Peers

2015-02-06 Thread Mike Cook
snip Three are fine, as long as only one dies or goes nuts. Again, define goes nuts. You don't seem to like the term falseticker, so how do you define goes nuts? If one goes nuts or even goes offline, if the remaining two do not agree then it is like having no server at all. No, it

Re: [ntp:questions] flash=0 , sel_reject

2015-02-06 Thread Mike Cook
Le 3 déc. 2014 à 02:37, ganeshsubramon...@gmail.com a écrit : Is there any scenario where the flash code show 00,ok, but the condition will show server rejected ? more details on http://lists.ntp.org/pipermail/questions/2014-December/039065.html Hope I am not posting in the wrong

Re: [ntp:questions] Leap second to be introduced in June

2015-02-06 Thread Mike Cook
Ceux qui sont prêts à abandonner une liberté essentielle pour obtenir une petite et provisoire sécurité, ne méritent ni liberté ni sécurité. Benjimin Franklin Le 16 janv. 2015 à 08:42, Harlan Stenn st...@ntp.org a écrit : Terje Mathisen writes: cmad...@cmadams.net (Chris Adams) wrote:

Re: [ntp:questions] Leap second to be introduced in June

2015-02-06 Thread Mike Cook
strange response! Le 11 janv. 2015 à 21:18, Paul tik-...@bodosom.net a écrit : Why do folks mention leap seconds on this list? part of the NTP protocol deals with the scheduling insertion/deletion of leap seconds. Why do people point to leap-seconds.NTPtimestamp instead of just

Re: [ntp:questions] problem with pool directive?

2015-02-06 Thread Mike Cook
Sorry if this is a dup. My first went through in a non text format. Just upgraded to Yosemite. Le 12 nov. 2014 à 00:15, Brian Utterback brian.utterb...@oracle.com a écrit : I believe that the number of pool servers used is determined by the minclock and maxclock parameters. Hmmm.

Re: [ntp:questions] problem with pool directive?

2015-02-06 Thread Mike Cook
Le 12 nov. 2014 à 00:15, Brian Utterback brian.utterb...@oracle.com a écrit : I believe that the number of pool servers used is determined by the minclock and maxclock parameters. Hmmm. Good idea, but looks like there may be work required. Results of a quick test on a cubietruck with

Re: [ntp:questions] Timekeeping on Windows 2008r2 VM on Linux QEMU/KVM

2015-01-21 Thread Mike Cook
Ceux qui sont prêts à abandonner une liberté essentielle pour obtenir une petite et provisoire sécurité, ne méritent ni liberté ni sécurité. Benjimin Franklin Le 21 janv. 2015 à 23:40, Harlan Stenn st...@ntp.org a écrit : Rob writes: Sander Smeenk ssme...@freshdot.net wrote: What is

Re: [ntp:questions] Leap second to be introduced in June

2015-01-20 Thread Mike Cook
Le 21 janv. 2015 à 07:18, Terje Mathisen terje.mathi...@tmsw.no a écrit : Mike S wrote: The real problem is systems (POSIX, particularly), which incorrectly handle time, despite having over 40 years to get it right. They try to please everyone, while pleasing no one. POSIX tracks and does

Re: [ntp:questions] Leap second to be introduced in June

2015-01-12 Thread Mike Cook
Not true. That would violate POSIX. There is no properly implements, or right thing. Perhaps you're unaware that POSIX isn't the One True Operating System specification. Properly implements means it follows the well defined, 40 year old normative specification for handling leap

Re: [ntp:questions] UK pool server denying access

2014-12-30 Thread Mike Cook
This guy needs bouncing Le 30 déc. 2014 à 07:56, shalu.sysc...@gmail.com a écrit : Swimming pool Our company designs and installs deluxe indoor and outdoor swimming pools in Central and Greater London areas. More at : http://www.swimmingpoolquotes.co.uk/pool-liners/

Re: [ntp:questions] Firewall requirements for NTP as both client and server

2014-12-28 Thread Mike Cook
Le 28 déc. 2014 à 17:11, David Taylor david-tay...@blueyonder.co.uk.invalid a écrit : I'm trying to understand the firewall requirements for NTP. Using the FreeBSD ipfw I have the following, which appears to allow NTPns to operate as a client, i.e. it can get times from other servers

Re: [ntp:questions] Firewall requirements for NTP as both client and server

2014-12-28 Thread Mike Cook
Le 28 déc. 2014 à 19:14, David Taylor david-tay...@blueyonder.co.uk.invalid a écrit : 17:46:20.823583 IP 192.168.0.1.ntp net4501.ntp: NTPv4, Client, length 48 17:46:52.838966 IP 192.168.0.1.ntp net4501.ntp: NTPv4, Client, length 48 They are 32 seconds approximately apart which is what

Re: [ntp:questions] ntpq -c sysstats (replacing 'ntpdc -c sysstats') ?

2014-12-22 Thread Mike Cook
Works for me. At least in Win7 Le 22 déc. 2014 à 22:35, irwin.till...@gmail.com a écrit : After upgrading to 4.2.8, I'm trying to migrate my use of 'ntpdc -c sysstats' to ntpq. The 4.2.8 source seems to indicate that something like 'ntpq -c sysstats' might be the answer, but ntpq

Re: [ntp:questions] Number of Stratum 1 Stratum 2 Peers

2014-12-14 Thread Mike Cook
Le 14 déc. 2014 à 08:24, Jan Ceuleers jan.ceule...@computer.org a écrit : On 14/12/14 03:28, Harlan Stenn wrote: Not that easy - unless you are one of the lucky few to have encrypted access to a NIST source, when it may be automatic. http://www.ietf.org/timezones/data/leap-seconds.list

Re: [ntp:questions] Number of Stratum 1 Stratum 2 Peers

2014-12-12 Thread Mike Cook
à 14:20, Mike Cook michael.c...@sfr.fr a écrit : snip Three are fine, as long as only one dies or goes nuts. Again, define goes nuts. You don't seem to like the term falseticker, so how do you define goes nuts? If one goes nuts or even goes offline, if the remaining two do not agree

Re: [ntp:questions] Number of Stratum 1 Stratum 2 Peers

2014-12-12 Thread Mike Cook
I agree that it is expected. Just wanted to confirm for myself. Habit from my admin/support days. Agreed that anyone needing the tai delta would load the leap file, but ntpd could propagate that info as well. I haven’t checked the code to see if it is supposed to, but in my test it wasn’t.

Re: [ntp:questions] Number of Stratum 1 Stratum 2 Peers

2014-12-09 Thread Mike Cook
snip Three are fine, as long as only one dies or goes nuts. Again, define goes nuts. You don't seem to like the term falseticker, so how do you define goes nuts? If one goes nuts or even goes offline, if the remaining two do not agree then it is like having no server at all. No,

Re: [ntp:questions] Number of Stratum 1 Stratum 2 Peers

2014-12-01 Thread Mike Cook
Le 2 déc. 2014 à 02:59, edstu...@gmail.com a écrit : Hi, I am looking to implement an NTP network and I was reading http://support.ntp.org/bin/view/Support/DesigningYourNTPNetwork. It suggests 4 stratum 1 peers and 4 stratum 2 peers well. I understand, that the document recommends

Re: [ntp:questions] NTP shared memory driver

2014-09-15 Thread mike cook
Le 15 sept. 2014 à 13:54, Rob a écrit : Claudio Persico cloudd...@gmail.com wrote: Thanks a lot for the explanation. I've just modified my test application. Now it works till 1 seconds of difference (4 hours is too much even for the first big time jump allowed by -g option).

Re: [ntp:questions] no drift-file on 2008 R2 vps and the time diff. is getting bigger and bigger?

2014-09-14 Thread mike cook
Le 14 sept. 2014 à 07:27, gooly a écrit : frequency=500.000, Your clock has a greater than the maximum drift acceptabe to NTP. You either need new hardware, or read the VPS doc on clock management. Is NTP running in some sort of virtual machine? Probably not a good idea.

Re: [ntp:questions] Compensating for asymmetric delay on a per-peer/server basis?

2014-09-13 Thread mike cook
Le 13 sept. 2014 à 07:46, Rich Wales a écrit : -68.65.164.12.PPS.1 u 13 16 3728.168 -2.126 4.585 -171.67.203.16 204.63.224.702 u2 16 3339.6892.146 3.930 Any thoughts? I should have added netstat -i are you dropping packets,

Re: [ntp:questions] Compensating for asymmetric delay on a per-peer/server basis?

2014-09-13 Thread mike cook
Le 13 sept. 2014 à 07:46, Rich Wales a écrit : Replying to Charles Elliott: The offset may be a function of distance. Try this experiment: Set up your ntp.conf file to have three servers . . . : 1. A relatively unused stratum 1 or 2 server as close to you as possible 2. A relatively

Re: [ntp:questions] Compensating for asymmetric delay on a per-peer/server basis?

2014-09-11 Thread mike cook
Le 11 sept. 2014 à 18:48, Rob a écrit : Paul tik-...@bodosom.net wrote: As an aside has anyone tried shaping traffic to make the upstream/downstream latencies similar? It would seem more efficient to apply network solutions to network problems if possible. That does not work. The

Re: [ntp:questions] Compensating for asymmetric delay on a per-peer/server basis?

2014-09-11 Thread mike cook
Le 11 sept. 2014 à 21:08, Paul a écrit : On Thu, Sep 11, 2014 at 2:08 PM, mike cook michael.c...@sfr.fr wrote: Did I miss something? On Tue, Sep 9, 2014 at 3:17 PM, Rich Wales ri...@richw.org wrote: My home LAN is connected to my school's network via a cable modem. If we make the (safe

Re: [ntp:questions] ntp-4.2.6p5

2014-09-03 Thread mike cook
Le 22 août 2014 à 20:09, Steve Clark a écrit : Hello, We are running the above release. It works great until the interface for the default route is brought down and then back up. Then after a half hour or so it ntpstat starts returning synchronised to unspecified at stratum 4

Re: [ntp:questions] bad time with a laptop on windows 7

2014-08-04 Thread mike cook
I also looked at the doc for your device and concur with Paul. You will most likely need to use the PPS BNC connector at the back of the adapter to get that signal. HOWEVER, it seems that PPS over USB has been done with a small mod to the connections of some driver chips and the use of the

Re: [ntp:questions] LOCL clock reachability not 377?

2014-08-01 Thread mike cook
Le 1 août 2014 à 00:43, Rob a écrit : William Unruh un...@invalid.ca wrote: I think you need to read up on the cmos clock. As I said, it reports only the seconds, but is settable and readable to microseconds. The CMOS clock is running off a 32768Hz crystal, so no way it can be more

Re: [ntp:questions] LOCL clock reachability not 377?

2014-07-30 Thread mike cook
Paradoxically , the LCL clock is fine when there are no refclocks. That is, when you don't need or want it. remote refid st t when poll reach delay offset jitter == *127.127.1.1 .LOCL.

Re: [ntp:questions] LOCL clock reachability not 377?

2014-07-30 Thread mike cook
Le 30 juil. 2014 à 11:00, Rob a écrit : mike cook michael.c...@sfr.fr wrote: Paradoxically , the LCL clock is fine when there are no refclocks. That is, when you don't need or want it. remote refid st t when poll reach delay offset jitter

Re: [ntp:questions] LOCL clock reachability not 377?

2014-07-29 Thread mike cook
Rob, Looks like a bug anterior to your version. I see the same issue with version=ntpd 4.2.6p5@1.2349-o whether or not there is a preferred local clock or not, and whether or not there are other active server associations. One for Harlen if it has not already been flagged. Tue Jul 29

Re: [ntp:questions] Embedded solutions

2014-07-08 Thread mike cook
I bought one of these to see what it could do and wrote a review on the Tindie site. One of the issues I raised was the volume and ad hoc format of stats messages he puts out on port 514 for syslog . I just updated that review with info on a log message filter I wrote, which makes loopstats

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