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16th July 2009
Linux based operating systems are increasing in popularity all the time. Commercial operating systems like Windows and OS X are constantly being bombarded by viruses and security breaches. There are few viruses that can touch a Linux system and they are o... Read >
Author: Graham Gallagher16th July 2009
There are chronologists all over the world working constantly to find new ways of telling time that are the most accurate that can possibly be created. The first atomic clocks were developed in the 1950’s and thus began the race for millisecond accuracy... Read >
Author: Graham Gallagher26th February 2009
Do you regularly need to correct the time on your PC? The answer is probably "Yes!". This is because computers have very poor time-keeping hardware. Often, the system clock in a regular PC can drift by minutes each day. However, help is at hand. It is ver... Read >
Author: Dave18th December 2008
NTP, or Network Time Protocol, is a standard protocol for synchronising time on computers and network equipment. NTP allows client computers to synchronise with a reference NTP server over a computer network. The protocol was originally developed for the ... Read >
Author: Dave23rd September 2008
Network Time Protocol seems to have been around for ever. In fact it is indeed one of the Internet’s oldest protocols having been developed in the 1980’s by Professor David Mills and his team from Delaware University.
In a laid-back world it perhap... Read >
Author: Richard N Williams23rd September 2008
A NTP Server connects to a computer network with the purpose of synchronising all computers, routers and other devices to the exact same time. NTP servers use Network Time Protocol to adjust the drift of different machines to match the reference time.
... Read >
Author: Richard N Williams05th September 2008
Time synchronization is vital in modern computer networks. Having one machine running a slower clock than another can cause a myriad of all sorts of problems. From the benign, such as emails arriving before they were sent, to the more serious such as bei... Read >
Author: Richard N Williams28th August 2008
When you set your watch by the speaking clock or the radio beeps have you ever wondered who is responsible for setting that time and how they can be sure it is accurate.
This may seem like a straightforward question but their is no master clock that th... Read >
Author: Richard N Williams29th July 2008
Many people are probably familiar with the Internet Time tab when setting their clock in Windows. This is a basic form of NTP (Network Time Protocol) called SNTP (Simple Network Time Protocol) that polls a NTP server every so often to synchronize time to.... Read >
Author: Richard N Williams24th July 2008
Computers systems have internal real-time clocks that are notoriously poor at keeping accurate time. Hence, the time on all computers and network devices can drift away from one another at different rates. This can be a real headache when trying to synchr... Read >
Author: Dave16th July 2008
NTP servers, like most systems are open to abuse and misuse. NTP servers can be flooded with traffic (a distributed denial of service - DDoS attack), the server's access policy could be violated or the NTP rules of engagement drawn up to prevent misuse of... Read >
Author: Richard N Williams03rd July 2008
NTP servers or Network Time Protocol are devices that connect to a computer network and synchronise all machines to a single time source. Of course most Windows operating systems have an inbuilt NTP program called Windows Time that can synchronise to an I... Read >
Author: Richard N Williams02nd July 2008
Nearly all a computers activity involves time whether logging a timestamp for when a network was accessed to sending an email, knowing the time is crucial for computer applications.
All computers have an on-board clock that provides time and date infor... Read >
Author: Richard N Williams01st July 2008
We are all used to the Sat Nav by now. More and more people are installing those little black boxes into their cars and throwing away their old paper road maps. The advantages of satellite navigation are many fold – from constant updates keeping the map... Read >
Author: Richard N Williams01st July 2008
Network Time Protocol (NTP) is probably the Internet’s oldest protocol. Developed at the University of Delaware, it has been in use and continually updated for the last 25 years. In short it is a protocol designed to synchronize the clocks on computers ... Read >
Author: Richard N Williams25th June 2008
Network Time Protocol has been developed to keep computers synchronized. All computers are prone to drift and accurate timing is essential for many time critical applications.
A version of NTP is installed on most versions of Windows (although a stripp... Read >
Author: Richard N Williams26th May 2008
Copyright (c) 2008 Richard Williams
NTP (Network Time Protocol) synchronises networks to a single time source using timestamps to represent the current time of the day, this is essential for time sensitive transactions and many system applications such... Read >
Author: Richard N Williams08th May 2008
The Network Time Protocol (NTP) was developed more than 25 years ago to synchronise Internet servers to the correct time. NTP is now one of the oldest protocols still in operation today. The protocol is widely used to synchronise Internet and intranet inf... Read >
Author: Dave06th May 2008
Time synchronisation in modern computer networks is essential. It not only provides the only frame of reference between all devices, it is critical in everything from securing, planning and debugging a network to providing a time stamp for applications su... Read >
Author: Richard N Williams06th May 2008
NTP (Network Time Protocol) synchronises networks to a single time source using timestamps to represent the current time of the day, this is essential for time sensitive transactions and many system applications such as email.
NTP is therefore vulnerab... Read >
Author: Richard N Williams02nd September 2007
The Network Time Protocol (NTP) was developed to provide a way of synchronising Internet clients to an accurate network time reference. NTP allows the time on client computers to be set to within a fraction of the correct time. The NTP protocol is a suite... Read >
Author: Dave29th August 2007
Copyright (c) 2007 Galleon Systems
An accurate time reference is a fundamental requirement to many computer software applications. Although every Personal Computer incorporates an internal clock, it pays to check that the date and time settings are cor... Read >
Author: galleon13th August 2007
The Network Time Protocol (NTP) was developed over 25 years ago as a means of distributing accurate time across the Internet. It is one of the oldest Internet protocols still in use today. NTP is a client-server based protocol for the distribution of accu... Read >
Author: Dave11th July 2007
Atomic clocks are utilised to provide a highly precise timing reference. Many types of clock use the generic term 'atomic'. Most atomic clocks are very expensive systems generally only found in National Physics Laboratories. Most commercial precise timing... Read >
Author: Dave01st July 2007
Computers maintain time and date information using internal real-time clock chips. These chips are battery-backed and maintain time even when the power to the computer is switched off. However, the components utilised are relatively low-cost devices and h... Read >
Author: Dave23rd May 2007
Network Time Protocol (NTP) is a standard Internet protocol for the dissemination of time around a computer network. The protocol operates in a hierarchical manner, each level or stratum serving the next level in the hierarchy. At the top of the hierarchi... Read >
Author: Dave03rd May 2007
The Network Time Protocol (NTP) was developed to distribute time around a computer network to network time clients. It is one of the oldest Internet protocols still in operation. Simple Network Time Protocol (SNTP) was developed as a simplified version of... Read >
Author: Dave10th April 2007
NTP or Network Time Protocol is an Internet protocol used to disseminate time across a computer network. It is widely used to synchronize time critical applications to an accurate reference time source.
This article describes the Network Time Protocol ... Read >
Author: Dave04th April 2007
Network Time Protocol (NTP) is a standard protocol for the transfer of time across the Internet and computer networks. The NTP protocol source code is ?open source' and can be freely downloaded from the NTP web site. The NTP primary development platform i... Read >
Author: Dave26th March 2007
NTP or Network Time Protocol to give it its full name is an internet protocol designed to distribute precise time around a network. NTP is a UDP based protocol used to synchronize system time on network infrastructure, such as servers, workstations and ne... Read >
Author: Dave28th February 2007
Network Time Protocol (NTP) is used to advertise time to network time clients on an IP network. NTP is a UDP based protocol that is used to synchronise system time on network devices. This article describes how to utilise NTP authentication to authenticat... Read >
Author: Dave07th February 2007
The Windows operating systems from Windows 2000 onwards has an in-built time synchronisation service � �Windows Time'. The Windows Time service facilitates a Windows network to provide synchronisation of all machines within a domain. This article desc... Read >
Author: Dave20th January 2007
The DCF-77 radio time transmission is utilised by many NTP server and PC computer systems to provide accurate synchronisation of time critical applications. This article describes how the DCF-77 time signal is decoded by NTP server and computer systems to... Read >
Author: Dave
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