URL: http://it.desy.de/services/time_service/index_eng.html
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Time Service @ DESY
To achieve a time synchronization between networked systems various protocols have been developed. One of the most popular is the Network Time Protocol (NTP) which is also provided at DESY. This protocol allows for an accuracy of a few microseconds within LAN environments, detailed information about the architecture, achievable precisions etc. can be found at the NTP Home Page or the NTP Public Services Project.
We do run 3 time server, a primary one (time.desy.de, 131.169.40.65) and two secondary server (ntp-2.desy.de = 131.169.194.85 , ntp-3.desy.de = 131.169.194.86). The primary server is a GPS-timeserver which is synchronized to the GPS reference time, the secondary servers do synchronize to other external primary time servers like the PTB in Braunschweig.
To use this time service to synchronize your machines you can use the available servers at DESY and you should configure your NTP setup properly. For Unix systems (which usually come with a ntpd or and xntpd daemon) a sample configuration is provided. Windows XP has an NTP Support included and the DESY Windows XP CD comes properly preconfigured.
