Friday, April 10, 2009

How to Synchronise Your Windows PC to a Time Server

Do you regularly need to correct internet telephone time on belkin 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. malaysian is very easy to synchronise the time on your Microsoft Windows computer with one of the most accurate clocks in the world. This article describes how to configure your Windows system to synchronise it's internal system time with an Internet based 'atomic time' reference.

PC's utilise an internal hardware real-time clock to maintain time. Generally, this hardware clock circuit utilises very low-cost components. This results in poor time-keeping performance. It is not unusual for a computer to loose minutes each day. There are hardware solutions available, which can improve timekeeping, such as more precision crystal oscillators. However, modifying PC's at board level is not an option for most users. Additionally, accurate time-keeping hardware can be prohibitively expensive. Ideally, a software solution to maintain accurate time is required. This is where the Network Time Protocol (NTP) comes in.

NTP is one of the oldest Internet protocols still in regular use today. Dr David Mills of the University of Dellaware invented it over 25 years ago. He recognised the need to synchronise time critical processes across the Internet. The Network Time Protocol allows client computers to synchronise to an accurate time reference over the Internet. NTP uses the UDP (User Datagram Protocol) over IP (Internet Protocol) to request time from an accurate time reference. It then waits for and accepts a response from the server before updating it's internal system time with the supplied reference time.

There are many NTP Servers residing on the Internet. Government or educational institutions generally maintain them. A NTP server internet broadband highly accurate time from an external time reference such as GPS or Radio and maintains this time internally. It then distributes the precise time to network time clients.

The latest Microsoft Windows operating systems, such as XP and Vista, incorporate a SNTP (Simple Network Time Protocol) client. This client can easily be used to synchronise to an Internet or locally based NTP server. The client is configured from the time and date properties telekom malaysia streamyx in the control panel, or by double clicking on the time in the system tray. One of the time properties tabs is labelled 'Internet time'. On this tab is a field called "Server" which accepts either the IP address or domain name of a NTP time server. Click the "Update Now" button and Windows will attempt to synchronise with the timenet broadband time reference. Ensure that the "Automatically Synchronise with an Internet Time Source" option is ticked and Windows will periodically update time from the reference automatically, thus keeping your system clock accurate.

If synchronisation fails then ensure that the supplied IP address or domain name of the NTP server is correct. Alternatively, it may be your firewall that is preventing communication with the time server. NTP operates on UDP port 123, so you must ensure that this port is left open on your firewall. The Windows firewall can be accessed from the Control Panel. To open NTP port 123, open the Windows Security Centre and select 'Manage Security Settings for Windows Firewall'. From the Windows Firewall applet select the 'Exceptions' tab. Click 'Add Port' to add an malaysian to the firewall. Enter a name for the exception, such as 'NTP port', and port number '123' and check UDP. Click OK to accept the settings. If you have a separate combined firewall and ADSL router, you may need to refer to your manufacturers documentation to find out how to open a port on the firewall.

To conclude, most computers keep extremely poor time. For many applications that rely on accurate time stamps, this can be entirely unacceptable. However, by utilising the Network Time Protocol, everyone can ensure that their computers system time is kept in sync with the most accurate clock in the world!

Please visit TimeTools website for more information and articles on NTP servers, network time synchronisation and time server solutions.

LONDON, April 10 ?Here are some team updates ahead of this weekends English Premier League action.

Firstly, champions and leaders Manchester United are without Rio Ferdinand for tomorrows match at Sunderland (live on StarSports, 10pm) as the defender has failed to recover from a groin injury suffered playing for England.

Possible replacement Jonny Evans is a hotel melaka also with a groin injury that he picked up in the midweek Champions League draw with Porto.

Verizon Wireless DayPass - Xohm’s Selling Points Weaken!

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But with a consumer call for a faster and more reliable service, and connection speeds falling behind countries like Japan and Sweden, suggested changes raised in a recent summit in London to discuss the future of broadband in the UK are still dividing opinion.

Plans for a future download speed of 24Mbps may seem fast for us, but with other countries around the world offering broadband deals, with connection speeds ranging from 40Mbps to even 100Mbps, could a change in infrastructure prove a turning point for broadband in the UK?

With the current broadband network based mostly on ADSL - a copper wire network designed to handle telephone calls - the demand for an increase in broadband speed could push the hardware to its limits. Other issues include noise on the line and falling connection speeds - causes for such disruption can include distance from the johor and an increase in traffic on the network.

One of the issues facing any future plans for a fibre network in the UK would be ensuring that it would be open to all ISPs in much the same way celcom broadband and streamyx with LLU (Local Loop Unbundling) - which allows other cheap broadband providers the chance to put their services in BT telephone exchanges.

But even ipoh city to that stage has been a long and complicated process, and with the demand for more cheap broadband increasing each check broadband line speed - a change in infrastructure could been broadband checking speed as a way forward and ensure that the UK is compatible with the ever-changing Internet.

A new method of unbundling - known as sub-loop unbundling - could be necessary to the introduction of a fibre network, but would require operators to share space in street cabinets, which some believe to be unfeasible. There are also concerns that fibre networks would create another digital divide - much like the current scenario when it comes to rural broadband technology.

Wireless solutions such as Wimax could be seen to be a temporary internet services but there has been a widespread call for more government funding to help the progression of UK broadband, particularly to those in remote areas of the UK. streamyx lowyat connections would provide opportunities for a faster connection that would be welcomed by online gamers, networks which share video content, as well as the chance of delivering high-definition content - such as HDTV - via a broadband connection.

But with a number of problems still to be sorted within the existing broadband network - such as complications with ISP migration and actual connection speeds promised in broadband deals - the future of broadband in the UK remains an area of uncertainty.

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