Synchronization Time on Windows 7
While for lots of home users this will save them the hassle of setting & correcting their clock as it drifts, for business users it may be problematic as web time sources are not secure & receiving a time source through the UDP port on the firewall could lead to security breaches & as Web time sources can’t be authenticated by NTP (Network Time Protocol) the signals can be hijacked by malicious users.
Windows 7, the latest operating method from Microsoft is also their first operating method that automatically synchronizes the PC clock to an web source of UTC time (Coordinated Universal Time). From the moment a Windows 7 computer is switched on & is connected to the Web it will request time signals from the Microsoft time service - time.windows.com.
This web time source can be deactivated by opening the clock & date dialogue box, & opening the Web Time tab, clicking the ’Change’ setting button & unchecking the ‘Synchronize with an Web time server option.’
Whilst this will unsure no unwanted traffic will be coming through your firewall it will also mean that the Windows 7 machine won't be synchronised to UTC & its timekeeping will be reliant on the motherboard clock, which will finally drift.
To synchronize a network of Windows 7 machines to an accurate & secure source of UTC then the most practical & simplest solution is to plug in a dedicated NTP time server. These connect directly to a router or switch & enable the safe receiving of an atomic clock time source.
Windows 7, the latest operating method from Microsoft is also their first operating method that automatically synchronizes the PC clock to an web source of UTC time (Coordinated Universal Time). From the moment a Windows 7 computer is switched on & is connected to the Web it will request time signals from the Microsoft time service - time.windows.com.
This web time source can be deactivated by opening the clock & date dialogue box, & opening the Web Time tab, clicking the ’Change’ setting button & unchecking the ‘Synchronize with an Web time server option.’
Whilst this will unsure no unwanted traffic will be coming through your firewall it will also mean that the Windows 7 machine won't be synchronised to UTC & its timekeeping will be reliant on the motherboard clock, which will finally drift.
To synchronize a network of Windows 7 machines to an accurate & secure source of UTC then the most practical & simplest solution is to plug in a dedicated NTP time server. These connect directly to a router or switch & enable the safe receiving of an atomic clock time source.
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