'Time servers' diaporamas de présentation

Synchronization

Synchronization. Chapter 5. Synchronization. Has any one given any through to how time is kept? How do we keep the time reasonably correct on our own computers?. Synchronization. Why is time important?. Clock Synchronization.

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Chapter 7

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Drucker, P. F., The Effective Executive, Harper Business, NY, NY, USA, 1966

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A Security Analysis of Version 2 of the Network Time Protocol NTP Matt Bishop

A Security Analysis of Version 2 of the Network Time Protocol NTP Matt Bishop. Presented by Alexander Gorman. Goal of Paper. Examine the security requirements of the Network Time Protocol (version 2) Determine if version 2 meets requirements Suggest Improvements. My Goals.

547 views • 40 slides

A Security Analysis of Version 2 of the Network Time Protocol NTP Matt Bishop

A Security Analysis of Version 2 of the Network Time Protocol NTP Matt Bishop. Presented by Alexander Gorman. Goal of Paper. Examine the security requirements of the Network Time Protocol (version 2) Determine if version 2 meets requirements Suggest Improvements. My Goals.

513 views • 40 slides

Distributed Systems Fall 2010

Time and synchronization. Distributed Systems Fall 2010. Outline. Introduction Basic definitions Synchronization algorithms Synchronous systems Cristian's algorithm Berkeley algorithm Network Time Protocol Summary. Time, and the lack thereof.

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Time, Clocks, and Global State Part-2

Time, Clocks, and Global State Part-2. CSCI 6680 Armin R. Mikler. Clock Synchronization. When each machine has its own clock, an event that occurred after another event may nevertheless be assigned an earlier time. Clock Synchronization Algorithms.

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Time Synchronization Dr. WenZhan Song Professor, Computer Science

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Implementing a NTP-Based Time Service within a Distributed Middleware System

Implementing a NTP-Based Time Service within a Distributed Middleware System. ACM International Conference on the Principles and Practice of Programming in Java (PPPJ `04) Hasan Bulut. Motivation.

207 views • 20 slides

Network Time Protocol - NTP

Network Time Protocol - NTP. Lizandro Damian Solano-Quinde. NTP - Introduction. NTP is a protocol for synchronizing the clocks on computers over packet-switched data networks NTP delivers accurate and reliable time in spite of faults in the network

638 views • 19 slides

ECE 428/CS 425 Distributed Systems

ECE 428/CS 425 Distributed Systems. Lecture 2 Time & Synchronization. Why synchronization?. Two sharpshooters in a multiplayer online game kill the same target. Which one gets the points? Synchronization required for Fairness Correctness!. Processes and Events.

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Previously

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Previously

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Previously

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Coping with Overload on the Network Time Protocol Public Servers

Coping with Overload on the Network Time Protocol Public Servers. David Mills, U Delaware Judah Levine, NIST Richard Schmidt, USNO David Plonka, U Wisconsin. Introduction. The Network Time Protocol (NTP) synchronizes clocks of hosts and routers in the Internet.

95 views • 8 slides