Archive for the ‘gps time server’ Category
Accurate time specialists, Galleon Systems, assess the implications of NIST’s new atomic clock.
NIST (National Institute of Standards and Technology) has revealed a new atomic clock, claiming that it has the capability to maintain accurate time for the next 300 million years.
NTP time server specialists, Galleon, answers what is NTP? Highlighting the benefits of NTP servers for businesses.
What Is NTP?
In simple terms NTP, or Network Time Protocol, is a system used to synchronise the time of day across computer networks. Originally developed by David L. Mills of the University of Delaware, NTP works by using a single time source, enabling it to synchronise time across all devices that are part of a network.
Did you know? NTP was first implemented in 1985. However, some of its predecessors date back as far as 1979.
A spate of Network Time Protocol DDoS attacks have hit the headlines recently with the BBC and PC World all reporting an increase in such incidents. Has your business suffered? Then read on…
Network time server manufacturers and suppliers, Galleon Systems, understand Network Time Protocol and provide numerous technologies capable of combatting the recent outbreak of Network Time Protocol DDoS attacks. Recently, the BBC made reference to online security specialists Cloudfare, which reported the ‘biggest’ attack of its kind and warned that a key vulnerability of internet infrastructure had been exploited. (more…)
When it comes to network time synchronisation, these days, you just can’t be too careful. Accurate and secure time is essential to keep a network healthy and to avoid problems. However, getting a secure source of time is often not as easy as it sounds. Many online time sources can expose a network to vulnerabilities, such as allowing malicious code through the firewall. Furthermore, an internet time source could itself be compromised and their accuracy is never guaranteed. (more…)
Because accurate and secure time is essential for any computer network finding a time source that is both precise and secure, is an important part of keeping a network healthy. With network time sources, there are plenty of choices, but not all of them can provide the security and precision needed by the modern network. (more…)
Most of us know how useful the GPS network is. The Global Positioning System has changed the way we navigate on the road, and most modern cars are sold complete with some form of satellite navigation system already installed. However, the Global Positioning System is not only useful for satellite navigation; it has other uses too, especially as a source of accurate time for synchronising a computer network and other such technologies with the aid of a GPS network time server.
Need for Synchronisation
Time synchronisation is vital for all sorts of technologies, especially computer networks. Having different machines with a different time can lead to all sorts of untold problems, from data getting lost to simple things such as emails arriving before they were technically sent. Without accurate synchronisation or a network time server, it is nearly impossible to keep a network running smoothly and pinpoint errors and bugs.
Other technologies too need complete synchronicity. CCTV cameras, cash machines and safety systems such as air traffic control all have to be precisely synchronised. Imagine the chaos if your local cash machine told a different time from the one next to it. In effect, you could withdraw money from one machine, while the one next to it would consider a transaction that hadn’t happened yet, allowing you to withdraw the same amount again.
The Global Positioning System doesn’t actually transmit any positioning information. The reason that satellite navigational systems can work out accurate positioning is due to the time signals that the GPS satellites transmit. Onboard each GPS satellite is a couple of atomic clocks. These clocks transmit their times and exact position of the satellite and it’s this information, triangulated from three or more satellites that a navigational system uses to work out exactly where it is in the world.
Atomic clocks have to be used for this process because the signals are travelling at the speed of light. A one-second inaccuracy in the time signal would lead a satellite navigational system to be in error of over 300,000 km. And it’s a testament to the atomic clocks on GPS satellites that most sat nav systems are accurate to within a few metres.
GPS Network Time Server
Because of the accuracy of the GPS time signals, and the fact that the signal are available anywhere on the planet, the GPS network is ideal for use as a master time source for computer network time synchronisation. To synchronise a computer network or other technology systems to GPS time, all that is required is a GPS network time server.
GPS network time servers do all the work for you. By use of a rooftop antenna, the time server receives the GPS signal and distributes it around a network of machines. By use of time synchronisation protocols such as NTP (Network Time Protocol), all devices can be kept within a few milliseconds of the original GPS time source. And you don’t need multiple time servers for large networks either. A single device can synchronise hundreds of devices to GPS time.
GPS network time servers are simple to install, simple to use and can maintain millisecond accuracy for all sorts of technologies. Used by organisations as diverse as stock exchanges, air traffic control and banking systems, GPS time servers provide an efficient and cost effective solution to maintain network synchronicity.
GPS time servers are a highly accurate and secure method of synchronising a computer network to UTC (Coordinated Universal Time). GPS time servers are simple to use and ensure a network is synchronised to s secure form of time. However, many network administrators don’t see the need to use a GPS time server and continue to put their network at risk by using an online source of time for synchronisation. Here are five reasons why a GPS time server is crucial for computer network synchronisation. (more…)
Time synchronisation is something easily taken for granted in this day and age. With GPS NTP servers, satellites beam down time to technologies, which keeps them synced to the world’s time standard UTC (Coordinated Universal Time).
Before UTC, before atomic clocks, before GPS, keeping time synchronised was not so easy. Throughout history, humans have always kept track of time, but accuracy was never that important. A few minutes or an hour or so difference, made little difference to people’s lives throughout the medieval and regency periods; however, come the industrial revolution and the development of railways, factories and international commerce, accurate timekeeping became crucial.
Greenwich Mean Time (GMT) became time standard in 1880, taking over from the world’s first time standard railway time, developed to ensure accuracy with railway timetables. Soon, all businesses, shops and offices wanted to keep their clocks accurate to GMT, but in an age before electrical clocks and telephones, this proved difficult.
Enter the Greenwich Time Lady. Ruth Belville was a businesswoman from Greenwich, who followed in her father’s footsteps in delivering time to businesses throughout London. The Belville’s owned a highly accurate and expensive pocket watch, a John Arnold chronometer originally made for the Duke of Sussex.
Every week, Ruth, and her father before her, would take the train to Greenwich where they would synchronise the pocket watch to Greenwich Mean Time. The Belvilles would then travel around London, charging businesses to adjust their clocks their chronometer, a business enterprise that lasted from 1836 to 1940 when Ruth finally retired at the age of 86.
BY this time, electronic clocks had began to take over traditional mechanical devices and were more accurate, needing less synchronisation, and with the telephone speaking clock introduced by the General Post Office (GPO) in 1936, timekeeping services like the Belville’s became obsolete.
Today, time synchronisation is far more accurate. Network time servers, often using the computer protocol NTP (Network Time Protocol), keep computer networks and modern technologies true. NTP time servers receive an accurate atomic clock time signal, often by GPS, and distribute the time around the network. Thanks to atomic clocks, NTP time servers and the universal timescale UTC, modern computers can keep time to within a few milliseconds of each other.