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Use a Ntp Server to Keep Precise Network Time

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 synchronise time-critical processes. However, it is quite simple to synchronise every device on your network to an accurate time reference - a NTP time server.

NTP servers are Internet, or locally, based time references that maintain a highly precise time and make this time available to client computers. These time servers obtain accurate time from external reference clocks such as GPS, radio time and frequency sources or other NTP servers.

NTP, or Network Time Protocol, is used by the Internet to distribute accurate time information to network time clients. NTP has been an important part of the Internet for over 25 years. The protocol was developed because of the need to provide synchronisation of critical processes. Most operating systems in use today, including Windows XP, 2003 and LINUX have the built-in ability to synchronise time with a NTP Server. Additionally, there are any number of Internet based NTP Time Servers with public access that can be used to synchronise your network infrastructure.

Microsoft Windows XP/2000/2003 has pre-configured SNTP, Simple Network Time Protocol, client software that can synchronise time with a time server. This is achieved by simply entering the domain name of an Internet NTP Server in the time properties tab or registry entry. The Windows machine will then contact the NTP Server and synchronise the system time to the specified reference at periodic intervals.

LINUX based systems have a NTP daemon that is available from the official NTP website. The NTP daemon runs constantly in background and monitors specified NTP servers. The daemon reads a structured list of NTP servers from a configuration file and periodically synchronises time with a selected reference.

To summarise, NTP time servers are dedicated network time servers that obtain time from an accurate external reference, such as radio or GPS, and provide an accurate timing reference. Time servers are often rack-mountable devices with external antenna's and an Ethernet connection. The devices obtain time from a radio or GPS timing reference and maintain an accurate internal time. This time is then distributed to time clients over an IP network. Dedicated NTP servers often minimize the set-up and configuration effort required to get a NTP time server installation up and running.

About the Author

Dave Evans is an experienced technical author with many years experience of NTP Server and Time Server systems and solutions to ensure accurate time on computers and network infrastructure. Dave has been heavily involved in the architecture of dedicated NTP time server systems, synchronised digital wall clocks and atomic clock timing products. Please visit our web site to find out more about time server and NTP Server systems.

Can one connect via wireless connection for online @ work while still using the ethernet for my work program?

I would like to go online at work but don't like the fact that my employer can trace the websites I visit. I enjoy browsing and investment boards and doing the odd stock trade, along with ebay....etc.
In my work area there is an open wireless signal which my wireless laptop picks up.

The only thing I can suggest is when at home log on to google and search for PROXY SERVERS. To use one type the address of the proxy into the address bar this brings up a title screen with a another address bar, use this to browse your sites, the proxy will disguise the sites visited as long strings of meaningless numbers. When you have finished and have shut down the proxy go to your employers Internet home screen click tools, delete cookies and temporary Internet files and clear your Internet history.
This should prevent your employer from knowing where you have been whilst allowing you to browse and have work site up at the same time. Sorry but don't know about the override problem, it may be due to settings on your laptop, have you tried opening a run window and and running services.msc, go to the bottom of the resulting list and find WIRELESS ZERO CONFIGURATION, right click on this and select start from the list, then follow the on screen instructions. Then try and connect to the wireless from the networks screen in control panel.

Hope this Helps, all the best. A

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