Setup NTP Server On RHEL 7

Install & Konfigurasi NTP

yum install ntp

Setup Konfigurasi NTP

vi /etc/ntp.conf

  • Replace setup IP Address  Pool NTP Syncronize nya :

Setup Default di non aktifkan

#server 0.rhel.pool.ntp.org iburst
#server 1.rhel.pool.ntp.org iburst
#server 2.rhel.pool.ntp.org iburst
#server 3.rhel.pool.ntp.org iburst

Add IP address NTP Syncronize :

server 172.17.122.1
server 172.17.250.29
server 172.27.250.29

Jika ada koneksi interout internet gunakan pool ntp indonesia berikut :

server 0.id.pool.ntp.org
server 1.id.pool.ntp.org
server 2.id.pool.ntp.org
server 3.id.pool.ntp.org
  • Setup host on local network ntp client

restrict 10.23.0.0 mask 255.255.0.0 nomodify notrap
restrict 10.25.0.0 mask 255.255.0.0 nomodify notrap

  • Tambahkan untuk create logging NTP

logfile /var/log/ntp.log

Save Konfigurasi ntp.conf

Setup Open Firewall Linux

firewall-cmd –permanent –zone=public –add-service=ntp

firewall-cmd –reload

Start service ntpd

systemctl start ntpd

systemctl enable ntpd

Verify NTP Koneksi

ntpq -p

timedateclt status

ntpstat

NTP CIMB NIAGA
==============
ntp.cimbniaga.co.id (172.17.122.1) — PROD
ntp.cimbniaga.co.id (172.17.121.57) — PROD
10.23.10.10 — DEV