RXN Logo RXN Doodle
| Home | Services | Chemistry | Materials | Elements | Help |
RXN Communications offers Network Time Protocol (NTP) services to RXN customers. The following are answers to Frequently Asked Questions (FAQ) about NTP services. Please direct any additional questions you may have to support@rxn.com .

RXN NTP FAQ - Q uestion and A nswer Table of Contents:


1. What is NTP?
2. How can I learn more about NTP?
3. What is SNTP?
4. How can I learn more about SNTP?
5. How can I use NTP to synchronize my system clock?
6. Does anyone really know what time it is?

7. Return to the Previous Menu.
8. Return to the RXN Communications Home Page.

Q 1. What is NTP?
A "The Network Time Protocol (NTP) Version 3 specified in RFC-1305 [MIL92] is widely used to synchronize computer clocks in the global Internet. It provides comprehensive mechanisms to access national time and frequency dissemination services, organize the time- synchronization subnet and adjust the local clock in each participating subnet peer. In most places of the Internet of today, NTP provides accuracies of 1-50 ms, depending on the characteristics of the synchronization source and network paths." --from RFC 2030 Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI.

$Id: 1,v 1.1 2003/07/05 14:14:06 rjd Exp $

^ Return to NTP FAQ Table of Contents
   
Q 2. How can I learn more about NTP?
A The Network Time Protocol (NTP) was developed in an attempt to provide network clock synchronization. Each implementation version of NTP has been fully documented:
RFC 958 Network Time Protocol (NTP) (sometimes called Version 0)
RFC 1059 Network Time Protocol (Version 1)
RFC 1119 Network Time Protocol (Version 2)
RFC 1305 Network Time Protocol (Version 3)

Additional information can be found on web pages dedicated to NTP services:

NTP Time Server Web Page
Prof. D. L. Mills' Web Page

$Id: 2,v 1.1 2003/07/05 14:17:28 rjd Exp $

^ Return to NTP FAQ Table of Contents
   
Q 3. What is SNTP?
A "...the Simple Network Time Protocol (SNTP), which is an adaptation of the Network Time Protocol (NTP) used to synchronize computer clocks in the Internet. SNTP can be used when the ultimate performance of the full NTP implementation described in RFC-1305 is not needed or justified." --from RFC 2030 Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI.

$Id: 3,v 1.1 2003/07/05 14:21:29 rjd Exp $

^ Return to NTP FAQ Table of Contents
   
Q 4. How can I learn more about SNTP?
A Implementations of the Simple Network Time Protocol (SNTP) are well documented:
RFC 1361 Simple Network Time Protocol (SNTP)
RFC 1769 Simple Network Time Protocol (SNTP) Version 3
RFC 2030 Simple Network Time Protocol (SNTP) Version 4 for IPv4, IPv6 and OSI

$Id: 4,v 1.1 2003/07/05 14:22:08 rjd Exp $

^ Return to NTP FAQ Table of Contents
   
Q 5. How can I use NTP to synchronize my system clock?
A If you are running on a unix platform, you can install David L. Mills' ntpd Network Time Protocol (NTP) daemon.

$Id: 5,v 1.1 2003/07/05 14:23:27 rjd Exp $

^ Return to NTP FAQ Table of Contents
   
Q 6. Does anyone really know what time it is?
A Does anyone really care? Perhaps you do. Here are two places that have a pretty good idea of the current time:
Official US Time provided by National Institute of Standards and Technology (NIST)
U.S. Naval Observatory

$Id: 6,v 1.1 2003/07/05 14:27:26 rjd Exp $

^ Return to NTP FAQ Table of Contents
   

DISCLAIMER: This FAQ is provided as is without any expressed or implied warranties. While every effort has been taken to ensure the accuracy of the information contained in this FAQ, the maintainer assumes no responsibility for errors or omissions, or for damages resulting from the use, or misuse, of the information contained herein.
built by RXN FAQ Builder!

hits since 24 Jul 1997 - copyright (c) 1997-2012 RXN Communications - webmaster@rxn.com - Revised 5 Nov 2012