The Network Time Protocol (NTP) keeps a computer's clock synchronised to the correct time. University Information Services (UIS), with assistance from the Department of Engineering, provides an NTP service that aims to provide millisecond-accurate time to systems on the University Data Network (UDN).
How to use NTP on the UDN
Most NTP clients on the UDN should be configured to use all four of:
ntp0.cam.ac.ukntp1.cam.ac.ukntp2.cam.ac.ukntp3.cam.ac.uk
Such clients should enable Network Time Security (NTS) if possible.
Clients that cannot be configured to use all four servers should instead use only:
sntp.cam.ac.uk
These clients can use NTS, but UIS doesn’t yet have enough experience to recommend this.
Clients that cannot use Domain Name System (DNS) names should instead use one or both of:
131.111.8.282a05:b400:c::123:20
These clients cannot use NTS.
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