| Flawed Routers Flood University of Wisconsin Internet Time Server: Report by Dave Plonka on the massive problems caused on the University of Wisconsin network and time servers, due to misconfiguration of NetGear equipment |
| Geodsoft How-To: NTP Time Synchronization: A tutorial on installing NTP servers on UNIX (OpenBSD and Linux) and Windows to accurately synchronize computer times. |
| Home of the Network Time Protocol: NTP official reference implementation (for Unix and Unix-like OSes, with ports to Microsoft Windows NT, VMS, real-time OSes like VxWorks and QNX). Also jumping-off point to the official NTP documentation and FAQ, community documentation tools (twiki), pool.ntp.org, and related projects. |
| LinuxDevCenter.com: Synchronizing Networks with NTP: Accurate timekeeping is vital to accurate records, and accurate logs are the mainstay of good system administration. Glenn Graham explains NTP (the Network Time Protocol) and how to put it to work on your network. |
| Network Time Protocol at the University of Michigan: A discussion of why and how to set up NTP software. Some information is specific to the University, some is more general. |
| Network Time Synchronization Project: NTP Project page for Dr. Mills, primary NTP researcher for over twenty years. He and his students are working on NTP version 4 to improve robustness and security. |
| NTP Reference Implementation Mailing Lists: Variety of mailing lists used to support ntp.org, including the announce list, CVS logs, bugs, and questions (which is gatewayed to the USENET newsgroup comp.protocols.time.ntp). |
| NTP Servers Web: Community maintained list of public Stratum 1 and Stratum 2 NTP time servers, including policies and requirements for use, contact information. Maintained via the NTP TWiki, by the admins of the respective sites themselves. |
| NTP Statistics Gathering and Reporting with MRTG: David Taylor's short description of how he uses MRTG (and SNMP) to gather and report statistics for NTP for his servers, including Perl scripts, shell scripts, and mrtg.conf examples |
| NTP Support Web: Not the official NTP documentation or the official NTP FAQ. Intended to be the collection point for cookbook configurations, tips, hints, tricks, and other comments from directly from various members of the NTP community that might be beneficial to others within the community. Anyone who is interested in helping to develop or improve documentation for NTP is encouraged to join and contribute. |
| O'Reilly Cisco Cookbook: This book gathers hundreds of example router configurations all in one place. In chapter 14, the authors provide information on configuring, running, and debugging NTP on your Cisco router. This link via O'Reilly's Safari network for online publications. |
| O'Reilly Hardening Cisco Routers: Sample chapter from the book, showing the cisco-specific methods of configuring your routers to support using NTP time synchronization. |
| pool.ntp.org: The Internet Time Network: Information on a collection of public NTP servers provided by users and ISP's placed in a DNS round-robin under pool.ntp.org. |
| RFC1305 - Network Time Protocol (Version 3): The current NTP standard. Available here in HTML, PDF, and Postscript formats. |
| RFC2030 - Simple Network Time Protocol Version 4: The current standard for SNTP, a version of the protocol for implementations which do not need all of the features of NTP. Available here in HTML, PDF, and Postscript formats. |
| The NTP FAQ and HOWTO: Understanding and using the Network Time Protocol (A first try on a non-technical Mini-HOWTO and FAQ on NTP) |
| Vendor: sco.com: Configuring Network Time Protocol (NTP) service: A detailed information page about the guidelines for implementing NTP on Caldera (SCO) Linux |
| Vendor: suse.com: Time Synchronization Through the Network: This page helps with configuration of NTP software in the S.u.S.E. Linux distribution. |
Classical
