Solved

NTP Server Configuration

Posted on 2014-07-23
6
558 Views
Last Modified: 2014-07-23
Do i need internet to configure NTP Server in my private network?
0
Comment
Question by:Ajeet Kumar
[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 19

Expert Comment

by:helpfinder
ID: 40213586
if you want to have time in your network synced you have to have connect to some NTP server - so basically yes, you need internet connection.
0
 
LVL 4

Expert Comment

by:rastoi
ID: 40213589
if your goal is not to have accurate time but just have source for aligning time in your environment, any server can claim self as "master of the time".
If you want to have your time accurate and align with external world, you need either internet connectivity to reliable time source or some time source HW device connected to server/network. there is a lot of GPS based clocks on the market available for this purpose.
0
 

Author Comment

by:Ajeet Kumar
ID: 40213590
i am going to configure my own ntp server than also i need internet? if yes why?
0
Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.

 
LVL 8

Expert Comment

by:Wilder_Admin
ID: 40213596
If its really important to have a correct time without internet there are devices existing like private clocks.
For example: http://www.amazon.com/TM1000A-GPS-Network-Time-Server/dp/B002RC3Q4Q/ref=sr_1_1?ie=UTF8&qid=1406100978&sr=8-1&keywords=ntp+server

But i do not think in a private enviroment is this used because you will not have any time based service in your lan.
So its cheaper to reset every 3 months manually by hand. Maybe by a calender entry.
0
 
LVL 8

Expert Comment

by:Wilder_Admin
ID: 40213599
you need the information what time it is. So you need internet to get this information. or by these gps devices.
0
 
LVL 19

Accepted Solution

by:
helpfinder earned 500 total points
ID: 40213603
as rastoi wrote, it depends if you want to have your time server synchronized with global NTP server(s) or not.
If your goal is to have just synced time in your network without need to be accurate you do not need internet connectivity. clients will communicate with your local NTP ask for a time and receive it. But in this scenario it could be time on your NTP server won´t be accurate, so all your clients will have the same (synced) time but not the same as world time.
On other hand if your local NTP server has internet connectivity it can sync accurate time with global NTP server so your clients syncing with local NTP are accurate as well
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

This article is in response to a question (http://www.experts-exchange.com/Networking/Network_Management/Network_Analysis/Q_28230497.html) here at Experts Exchange. The Original Poster (OP) requires a utility that will accept a list of IP addresses …
Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…

734 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