Recommended public SNTP time servers
249
IPLink Software Configuration Guide
21 • SNTP client configuration
Legend
1. Heavily loaded and not recommended for new users.
2. Recommended for new users.
3. Used for testing only. Not for general users.
4. Does not support anonymous ftp connections.
For more information about NIST Internet Time Service (ITS) check their web server at
http://www.boulder.nist.gov/timefreq/service/its.htm
Other public NTP primary (stratum 1) time servers
Switzerland
•
swisstime.ethz.ch (129.132.2.21)
•
Location: Integrated Systems Laboratory, Swiss Fed. Inst. of Technology, CH 8092 Zurich, Switzerland
•
Geographic Coordinates: 47:23N, 8:32E
•
Synchronization: NTP primary (DCF77 clock), Sun-4/SunOS 4.1.4
•
Service Area: Switzerland/Europe
•
Access Policy: open access
•
Contact: Christoph Wicki ([email protected])
Germany
•
DE ntp0.fau.de (131.188.34.75)
•
Location: University Erlangen-Nuernberg, D-91058 Erlangen, FRG
•
Geographic Coordinates: 49.573N 11.028E (from Meinberg GPS 166)
•
Synchronization: NTP V3 primary (GPS receiver (<<1us)), Sun SS12/Unix SunOS 5.6
•
Service Area: Germany/Europe
•
Access Policy: open access, pick one of ntp{0,1,2}.fau.de
•
Contact: The Timekeepers ([email protected])
Note
IP addresses are subject to change; please use DNS
•
DE ntp1.fau.de (131.188.34.45)
•
Location: University Erlangen-Nuernberg, D-91058 Erlangen, FRG
•
Geographic Coordinates: 49.573N 11.028E (from Meinberg GPS 166)
time-d.timefreq.bldrdoc.gov
132.163.4.104
3
Colorado
time.nist.gov
192.43.244.18
1
Colorado
time-nw.nist.gov
131.107.1.10
1
Washington
Table 13. Time servers operated by NIST (Continued)
Server Name
IP Address
Note
Location