NTP Server : Install Chrony2019/07/10

	Install Chrony and Configure NTP server for time adjustment. NTP uses 123/UDP.
[1]	Install and Configure Chrony.

root@dlp:~#

apt -y install chrony

root@dlp:~#

vi /etc/chrony/chrony.conf

# line 3: comment out

pool 2.debian.pool.ntp.org iburst

# add servers in your timezone to sync times

server ntp.nict.jp iburst
server ntp1.jst.mfeed.ad.jp iburst

# add to the end : add the network range you allow to receive requests

allow 10.0.0.0/24

root@dlp:~#

systemctl restart chrony

# show status

root@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     0  -2672us[-2819us] +/-   11ms
^- ntp1.jst.mfeed.ad.jp          2   6     7     2   -486us[-4742us] +/-   90ms

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