topic Re: Server Time in Operating System - HP-UX

Server Time

carl airiel — Mon, 02 Jan 2006 11:36:56 GMT

I have 7 HP-UX server. 3 of them are HP-UX 11. Each of this server have different time and date. Example, one of my server is ahead to 30 mins to the other server. I wanted it to be synchronized with each other. If I'm going to change the time, Will it affect the programs on each server?Will it cause me a lot troubles?Is there a free application or program that I can easily configure on one server?

Regards,
Allan

Re: Server Time

melvyn burnard — Mon, 02 Jan 2006 11:46:19 GMT

There is the xntp service that is available on HP-UX.
You can either manually configure it, or use SAM.

man xntpd

Re: Server Time

James R. Ferguson — Mon, 02 Jan 2006 12:12:11 GMT

Hi Allan:

As Melvyn noted, the manpages for 'xntpd(1M)' provide a good source of information.

Chapter-7 of the "Installing and Administering Internet Services" guide discusses NTP configuration and support:

http://docs.hp.com/en/B2355-90685/index.html

You will want to either step or slew time differences if adjustments are needed. To configure slewing, set 'XNTPD_ARGS=-x' in '/etc/rc.config.d/netdaemons'.

If the time difference between your server and your NTP source is too great (>= 1000 seconds), XNTPD will die. You may need to plan a reboot to step the time difference to a very small delta. Re-setting the time can play havoc with databases and some applications. Setting your time forward is generally not a problem. Setting a server's time backwards should be avoided.

Regards!

...JRF...

Re: Server Time

Shameer.V.A — Mon, 02 Jan 2006 23:13:02 GMT

Hi Allan,
Happy New Year

You can use the HP UX service ntpd for time synchrnizing. You may set one server as master or you can configure servers as peer. For master server you may synchronize time with external time source like internet for better accuracy.

I'm attaching one file for your reference.
This having the full method of how to use NTP.

Hope this will help you..

Shameer

Re: Server Time

Mustafa Gulercan — Tue, 03 Jan 2006 02:41:49 GMT

hi carl;
you may config ntp as the following;
1- vi /etc/rc.config.d/netdaemons
NTPDATE_SERVER='timeserver'
XNTPD=1

2- vi /etc/ntp.conf
server timeserver
driftfile /etc/ntp.drift

3- /sbin/init.d/xntpd start

4- ntpq -q

mustafa

Re: Server Time

Arturo Galbiati — Tue, 03 Jan 2006 04:11:43 GMT

Hi Allan,
to knwo the time on remote system:
telnet remote_server 13 2>/dev/null|grep :

HTH,
Art

Re: Server Time

Muthukumar_5 — Tue, 03 Jan 2006 04:57:33 GMT

You can also use rdate utility to get the remote server time and set it to local machine by running with root user.

Open source project:

http://freshmeat.net/projects/rdate/

--
Muthu