Configure NTP Server2019/01/14 |
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Install Chrony and Configure NTP server for time adjustment.
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| [1] | Install Chrony. |
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dlp:~ # zypper -n install chrony
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| [2] | Configure Chrony. |
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dlp:~ #
vi /etc/chrony.conf # line 3: change servers for synchronization (replace to your timezone's one) # ! pool pool.ntp.org iburst
server ntp.nict.jp iburst
server ntp1.jst.mfeed.ad.jp iburst # line 25: add the network range you allow to receive requests
allow 10.0.0.0/24
systemctl start chronyd dlp:~ # systemctl enable chronyd |
| [3] | If Firewalld is running, allow NTP service. NTP uses 123/UDP. |
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dlp:~ # firewall-cmd --add-service=ntp --permanent success dlp:~ # firewall-cmd --reload success |
| [4] | Verify it works normally like follows. |
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dlp:~ # chronyc sources 210 Number of sources = 2 MS Name/IP address Stratum Poll Reach LastRx Last sample =============================================================================== ^* ntp-b3.nict.go.jp 1 6 17 11 -412us[-5299us] +/- 10ms ^- ntp1.jst.mfeed.ad.jp 2 6 17 12 +1433us[+1433us] +/- 87ms |
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