[ntp:questions] ARRGH!!! I woke up to a 50 SECOND clock error.

Ron Frazier (NTP) timekeepingntplist at c3energy.com
Thu Mar 15 13:39:55 UTC 2012


On 3/14/2012 6:42 PM, E-Mail Sent to this address will be added to the 
BlackLists wrote:
> Ron Frazier (NTP) wrote:
>    
>> My typical performance from internet servers is offsets of + / - 60 ms.
>>      
> # Why not try some that have a closer network distance, or are at least geographically closer?
> # Georgia / Comcast Hints:
>
> tos cohort 1
> restrict source nomodify
> pool us.pool.ntp.org iburst                 # supposed to give you geographically close servers
>
> # server rolex.usg.edu iburst
> # server timex.usg.edu iburst
> # server ntp2.stsn.net iburst
> # server tick.gatech.edu iburst
> # server time.intersecur.net iburst
> # server nist1-atl.ustiming.org iburst
> # server nist1.columbiacountyga.gov iburst
>
> # _Your_ ISP router is likely already picking up the closest couple of these all by itself already
> # server ntp01.comcastbusiness.net iburst
> # server ntp02.comcastbusiness.net iburst
> # server ntp.whm.comcastcommercial.net iburst
> # server ntp01.inflow.pa.bo.comcast.net iburst
> # server ntp02.inflow.pa.bo.comcast.net iburst
> # server ntp01.cmc.co.denver.comcast.net iburst
> # server ntp02.cmc.co.denver.comcast.net iburst
> # server cr01.atlanta.ga.ibone.comcast.net iburst
> # server pr01.atlanta.ga.ibone.comcast.net iburst
> # server pe02.56marietta.ga.ibone.comcast.net iburst
> # server te-0-1-0-4-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-3-5-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-3-5-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-1-4-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-2-2-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-1-5-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-4-3-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-0-12-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-0-10-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-3-12-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-4-12-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-4-12-0-0-cr01.atlanta.ga.ibone.comcast.net iburst
> # server pos-0-0-0-0-pe01.56marietta.ga.ibone.comcast.net iburst
> # ...
>
>    

Thanks for this info.  This is a very cool server list.  It's obviously 
relevant to my location.  I'm not sure just how you did that.  I'm going 
to keep this for reference.  For the moment, I have to spend my time on 
getting my GPS(s) working and setting up my own time server.  However, 
later, I might try some tinkering to improve the internet server 
performance.

Sincerely,

Ron


-- 

(PS - If you email me and don't get a quick response, don't be concerned.
I get about 300 emails per day from alternate energy mailing lists and
such.  I don't always see new messages very quickly.  If you need a
reply and have not heard from me in 1 - 2 weeks, send your message again.)

Ron Frazier
timekeepingdude AT c3energy.com



More information about the questions mailing list