Solved

NTP for domain

Posted on 2013-12-30
6
212 Views
Last Modified: 2014-04-20
Can someone recomend at least 2 stratum 0 (zero) sources

my requiremet is:
The synchronisation period and clock accuracy of all elements of the system, including all equipment, shall be such that no clock is ever more than two (2) seconds different from the stratum 0 reference time.
0
Comment
Question by:porto111
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
6 Comments
 
LVL 53

Accepted Solution

by:
Will Szymkowski earned 500 total points
ID: 39746461
Take a look at the link below as it provides several stratum "0" time servers. Select your country and your done.

Stratum 0 Time Servers - http://support.ntp.org/bin/view/Servers/StratumOneTimeServers

Will.
0
 

Author Comment

by:porto111
ID: 39747321
I thought a stratum 0 had to be a device such as GPS NTP server , something that gets its time not over the network
0
 
LVL 14

Expert Comment

by:frankhelk
ID: 39749095
I would recommend to circumvent the use of W32time (that piece of crap annoyed me whenever I used it in NTP mode).

Just use a Windows port of the classic *UX NTP client on all machines. Easy to install, works like a charm, is stable as a rock and (in the seldom cases) better to troubleshoot than W32time. Usually keeps a zoo of stations in sync within some tens of milliseconds.

Have a look at my article on NTP and don't hesitate to ask me if you have additional questions.
0
Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

 
LVL 62

Expert Comment

by:gheist
ID: 39750395
For two second offset you can set time from wall clock with seconds arrow. No need to bugger high-accuracy services on internet.
Even synchroonising from stratum 4 server across the planet you will be within 1/100th of second.
0
 
LVL 14

Expert Comment

by:frankhelk
ID: 39751042
For two second offset you can set time from wall clock with seconds arrow

That's correct - but why do it manually with a regular schedule when there's free software around to do that with much better accuracy ?
0
 
LVL 62

Expert Comment

by:gheist
ID: 40011600
Probably you need to use some math to project drift of individual clocks and adjust sync period accordingly
By default windows syncs every 24h and logs the result. If the step then exceeds 1s you should consider replacing defective clock in machine (with soldering iron) or syncing more often.
0

Featured Post

Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Hi there, This article summarizes what you need if you are going to set up your home or small business Network Attached Storage (NAS) to be accessible from the internet. Of course there are configuration differences based on your NAS or router ma…
Know what services you can and cannot, should and should not combine on your server.
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…
Finding and deleting duplicate (picture) files can be a time consuming task. My wife and I, our three kids and their families all share one dilemma: Managing our pictures. Between desktops, laptops, phones, tablets, and cameras; over the last decade…

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question