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The idiosyncratic portion is modifying /etc/rc.config.d/netdaemons. Make sure following variables
are defined and XNTPD is set to 1:
export NTPDATE_SERVER='ntp.mycorp.com pool.ntp.org in.pool.ntp.org'
export XNTPD=1
export XNTPD_ARGS=
Where,
Make sure correct timezone is setup in /etc/TIMEZONE file (look for TZ variable):
Make sure the NTP servers are also defined in /etc/ntp.conf :
server nti1.firm.comWhere,
server nti2.firm.com
Restart HP-UX ntp service:
# /sbin/init.d/xntpd stop && /sbin/init.d/xntpd start
Watch out log file /var/adm/syslog/syslog.log for errors:
# tail -f /var/adm/syslog/syslog.log
If clock were not syncronized make sure xntpd is running:
# ps -ef | grep xntpd
Note: SAM can also be used to configure NTP service under HP-UX, just start SAM and open time window.
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Feb 09, 2020 | www.2daygeek.com
It can synchronize the system clock faster with better time accuracy and it can be very much useful for the systems which are not online all the time.
Chronyd is smaller in size, it uses less system memory and it wakes up the CPU only when necessary, which is better for power saving.
It can perform well even when the network is congested for longer periods of time.
You can use any of the below commands to check Chrony status.
To check chrony tracking status.
# chronyc tracking Reference ID : C0A80105 (CentOS7.2daygeek.com) Stratum : 3 Ref time (UTC) : Thu Mar 28 05:57:27 2019 System time : 0.000002545 seconds slow of NTP time Last offset : +0.001194361 seconds RMS offset : 0.001194361 seconds Frequency : 1.650 ppm fast Residual freq : +184.101 ppm Skew : 2.962 ppm Root delay : 0.107966967 seconds Root dispersion : 1.060455322 seconds Update interval : 2.0 seconds Leap status : NormalRun the sources command to displays information about the current time sources.
# chronyc sources 210 Number of sources = 1 MS Name/IP address Stratum Poll Reach LastRx Last sample =============================================================================== ^* CentOS7.2daygeek.com 2 6 17 62 +36us[+1230us] +/- 1111ms
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Some notes:
Configuring an NTP Server
1. Modify the /etc/rc.config.d/netdaemons file to configure xntpd daemon. Set XNTPD=1. export NTPDATE_SERVER= export XNTPD=1 export XNTPD_ARGS=
2. Modify /etc/TIMEZONE file. See /usr/lib/tztab for a list of all available time zones. TZ=CST6CDT export TZ
3. Modify /etc/ntp.conf file and define NTP server.
4. Run the xntpd daemon manually. #/sbin/init.d xntpd start
5. Wait. It could take up to 6 minutes for the xntpd daemon to start.
6. Verify the NTP server configuration (and its association with peer servers) by executing the command: #ntpq -p
Configuring an NTP Client
1. Modify the /etc/rc.config.d/netdaemons file on all clients and servers. export NTPDATE_SERVER=�server1 server2� export XNTPD=1 export XNTPD_ARGS=
2. Modify /etc/TIMEZONE file. See /usr/lib/tztab for a list of all available time zones. TZ=CST6CDT export TZ
3. Modify /etc/ntp.conf file and define NTP client.
4. Run the xntpd daemon manually. #/sbin/init.d xntpd start Wait. It could take up to 6 minutes for the xntpd daemon to establish an association with the corresponding NTP servers and peers.
6. Verify the NTP server configuration (and its association with peer servers) by executing the command: #nt
Test configuration with:
ntpq -p
In case you are using a server that uses its internal clock, its ntp.conf should look like:
server 127.127.1.1 fudge 127.127.1.1 stratum=10
For the clients you can have the entries in ntp.conf:
broadcastclient=yes driftfile /etc/ntp.drift
or
server server_name driftfile /etc/ntp.drift
Hi, ntp is the network time protocol service while xntpd is nothing but the daemon which is must to run the ntp service. In Your case. Login as root to Pluto server and: 1) Edit " /etc/rc.config.d/netdaemons " file on the Pluto Server as follows : export NTPDATE_SERVER= export XNTPD=1 export XNTPD_ARGS=
2)Edit " /etc/ntp.conf " file in the pluto server with the below entries at the end of the file :
server <Give the IP address of Pluto> 3) To Maually start xntpd daemon : # /sbin/init.d/xntpd start ON Jupiter side :
1)Edit " /etc/rc.config.d/netdaemons " file on the clients side as follows : export NTPDATE_SERVER=<Give the IP address of PlutoServer> export XNTPD=1 export XNTPD_ARGS= 2)Edit " /etc/ntp.conf " file on the Jupiter server and add below entries at the end of the file: server <IP Address of Pluto> 3)#/sbin/init.d/xntpd start
In case the time synchronisation doesn't start it will definately start at the reboot of respective servers. 95 % it will start w/o reboot.
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