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Time Server

time.uni-bonn.de

The HRZ offers two time servers from the Network Time Protocol (NTP Version 4, see http://www.ntp.org. The time servers are available in the university network under clock1.rhrz.uni-bonn.de (or time.uni-bonn.de) and clock2.rhrz.uni-bonn.de (port 123 tcp/udp).  

The time servers are embedded Linux servers with clock modules that run as NTP servers with a Stratum value of 1. They receive their time via DCF-77 signal from Mainflingen near Frankfurt am Main. By using high precision correlation receivers, a deviation from 0-2 µs may be reached.

The timeserver can be used to provide your computer with the correct time.

Setting up the time in Windows 7

As a user with administrator rights you can determine that the computer obtains its time from the internet:

To do this, click right on the time in the bottom right corner of the taskbar.

In the context menu select “Change Date/Time”.

Then the window Date and Time will appear.


Select the tab “Internet time”.

Click the checkbox “Synchronize with an internet time server”, so that it is checked

Type time.uni-bonn.de in the field server.

Click the button “refresh now”.


Further information about the settings of a NTP-Client can be found under:

 http://www.akadia.com/services/ntp_synchronize.html

 http://support.microsoft.com/default.aspx?scid=kb;de;307897

 

 

 

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