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Computer Network Time Synchronization: The Network Time Protocol on Earth and in Space, Second Edition [Anglais] [Relié]

David L. Mills

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Présentation de l'éditeur

Carefully coordinated, reliable, and accurate time synchronization is vital to a wide spectrum of fields—from air and ground traffic control, to buying and selling goods and services, to TV network programming. Ill-gotten time could even lead to the unimaginable and cause DNS caches to expire, leaving the entire Internet to implode on the root servers.

Written by the original developer of the Network Time Protocol (NTP), Computer Network Time Synchronization: The Network Time Protocol on Earth and in Space, Second Edition addresses the technological infrastructure of time dissemination, distribution, and synchronization—specifically the architecture, protocols, and algorithms of the NTP. This system has been active in one form or another for almost three decades on the Internet and numerous private networks on the nether side of firewalls. Just about everything today that can be connected to a network wire has support for NTP.

This book:

  • Describes the principal components of an NTP client and how it works with redundant servers and diverse network paths
  • Provides an in-depth description of cryptographic and other critical algorithms
  • Presents an overview of the engineering principles guiding network configuration

Evaluating historic events that have taken place since computer network timekeeping started almost three decades ago, the author details a number of systems and drivers for current radio, satellites, and telephone modem dissemination and explains how we reckon the time, according to the stars and atoms. The original 16 chapters of the first edition have been rewritten, updated, and enhanced with new material. Four new chapters cover new algorithms and previously uncovered concepts, including timekeeping in space missions.


Praise for the first edition:

"… For those that need an exhaustive tome on all of the minutiae related to NTP and synchronization, this is the source. … definitive … this book should be considered the last word on the topic."
—Ben Rothke on Slashdot.org

"… the bible of the subject… contains enough information to take you just as far as you want to go….Dr. Mills is the original developer of NTP."
Books On-Line

Biographie de l'auteur

Dr. David L. Mills is professor emeritus of electrical and computer engineering and computer and information sciences at the University of Delaware. He has been an active contributor for many years to the field of Internet technology, particularly computer network time synchronization. He is the original developer of the Network Time Protocol and has authored over 30 articles and technical reports on the subject, including the current operative standards documents. His doctoral degree in computer science was conferred by the University of Michigan in 1971. He is a member of the National Academy of Engineering and a Fellow in both the Association for Computing Machinery and the Institute of Electrical and Electronics Engineers.

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Amazon.com: 5.0 étoiles sur 5  1 commentaire
5.0 étoiles sur 5 Written by the person who originally designed NTP, this is THE definitive source on NTP. 4 juillet 2014
Par AreThree - Publié sur Amazon.com
Format:Relié|Achat vérifié
This is THE DEFINITIVE SOURCE on the topic of The Network Time Protocol (NTP).

It is written by the person who originally designed NTP. What more proof do you need that this is THE BOOK on the topic. Period.

It is written much like a textbook, and is suitable for use in classroom and training environments. However, one can also pick it up and read it cover to cover as I did and come away much enlightened. Granted, some (ok, most) of the mathematics in some portions of the tome are well beyond my schooling, but it is written in such a way that you can get the idea of the concept without having to revisit a lot of long-forgotten math.

This book has a proud home on my short-list of books that occupy the bookshelf of manuals that I keep by my computer. I look forward to revisiting some of the portions of the book with a math wizard and have some of the math, graphs, and concepts explained to me further, but that is my failing, not the book's. It would be nice if, say in the foreword, Mr. Mills let the reader know which math courses (and at what level) would be most helpful for understanding the amazing amount of information available in his book.

I am eagerly trying out examples and testing configurations listed in the book (in a sandbox-type environment, of course) and learning more through the experiments.

If you are looking for a quick-and-dirty "how-to get NTP up and running quickly" guide, this isn't it. However, if you are in ANY way involved or responsible for making accurate and precise time available to your network, or to the Internet at large, this is a MUST READ. You must be able to understand what settings and configurations have which consequences; not only for your own configuration, but also for the community of time servers available through the Internet.

Bravo, Dr. Mills! This is a rare example of consolidating total and complete knowledge of a topic.
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