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Code Block
title/etc/chrony.conf 
# server 0.centos.pool.ntp.org iburst
# server 1.centos.pool.ntp.org iburst
# server 2.centos.pool.ntp.org iburst
# server 3.centos.pool.ntp.org iburst

server time.bora.net iburst
server timesend.postechmx.accdnetworks.krcom iburst
server time.kaist.ac.kr iburst


변경 사항을 반영하기 위해 chronyd 를 재구동합니다.

Code Block
$  sudo systemctl restart chronyd



동기화 설정이 제대로 되었는지 확인하기 위해 timedatectl 명령을 실행합니다.

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Code Block
# chronyc sources -v

210 Number of sources = 42

  .-- Source mode  '^' = server, '=' = peer, '#' = local clock.
 / .- Source state '*' = current synced, '+' = combined , '-' = not combined,
| /   '?' = unreachable, 'x' = time may be in error, '~' = time too variable.
||                                                 .- xxxx [ yyyy ] +/- zzzz
||      Reachability register (octal) -.           |  xxxx = adjusted offset,
||      Log2(Polling interval) --.      |          |  yyyy = measured offset,
||                                \     |          |  zzzz = estimated error.
||                                 |    |           \
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^*? 106time.247bora.248.106net               2  100   3776   778  -1074us[-1068us] +/-0    29ms ^+ 210.183.236.141-     +0ns[           2  10   377   920  +5391us[+5396us+0ns] +/-   67ms 0ns
^+* send.mx.cdnetworks.com        2  10 6  377  17 860  +1092us[+1098us] +/- 9  58ms
^+ dadns.cdnetworks.co.kr        2  10   377     5   +206us+4376ns[ +206us135us] +/-   33ms47ms



같이 보기

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