Linux Socket Programming 책을 공부하다가 daytime 서버를 이용한 예제가 있어서 따라하던 중, 문득 내 리눅스 머신에는 daytime 데몬이 가동중이지 않다는 것을 알게 되었다.

 잠시 구글링을 한 결과 알게 된 경로를 이곳에 정리한다.

 한국의 경우, 보통은 time.bora.net 의 ntp 서비스를 사용한다.

 아래는 daytime 서비스를 위한 미국의 서버 리스트들이다.

 http://tf.nist.gov/tf-cgi/servers.cgi

Name IP Address Location Status
nist1-ny.ustiming.org 64.90.182.55 New York City, NY Recommended for new users
time-a.nist.gov 129.6.15.28 NIST, Gaithersburg, Maryland Ok
time-b.nist.gov 129.6.15.29 NIST, Gaithersburg, Maryland Ok
nist1.aol-va.symmetricom.com 64.236.96.53 Reston, Virginia Recommended for new users
nist1-pa.ustiming.org 206.246.122.250 Hatfield, PA Ok — recommended for new users
nist1.columbiacountyga.gov 68.216.79.113 Columbia County, Georgia Recommended for new users
nist1-chi.ustiming.org 208.66.175.36 Chicago, Illinois Recommended for new users
nist.expertsmi.com 173.14.47.149 Monroe, Michigan Recommended for new users
nist.netservicesgroup.com 64.113.32.5 Southfield, Michigan Recommended for new users
nisttime.carsoncity.k12.mi.us 66.219.116.140 Carson City, Michigan Recommended for new users
wwv.nist.gov 24.56.178.140 WWV, Fort Collins, Colorado Recommended for new users
time-a.timefreq.bldrdoc.gov 132.163.4.101 NIST, Boulder, Colorado Ok
time-b.timefreq.bldrdoc.gov 132.163.4.102 NIST, Boulder, Colorado Very busy
time-c.timefreq.bldrdoc.gov 132.163.4.103 NIST, Boulder, Colorado ok
time.nist.gov 192.43.244.18 NCAR, Boulder, Colorado Very busy
utcnist.colorado.edu 128.138.140.44 University of Colorado, Boulder ok
utcnist2.colorado.edu 128.138.188.172 University of Colorado, Boulder ok
ntp-nist.ldsbc.edu 198.60.73.8 LDSBC, Salt Lake City, Utah temporary network problem
nist1-lv.ustiming.org 64.250.229.100 Las Vegas, Nevada ok — Recommended for new users
time-nw.nist.gov 131.107.13.100 Microsoft, Redmond, Washington ok
nist1.aol-ca.symmetricom.com 207.200.81.113 Mountain View, California ok
nist1.symmetricom.com 69.25.96.13 San Jose, California Recommended for new users
nist1-sj.ustiming.org 65.50.199.148 San Jose, California system to be moved to new location
nist1-la.ustiming.org 64.147.116.229 Los Angeles, California Recommended for new users

 

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