topic Time Sync in Operating System - HP-UX

Time Sync

Gary Jackson_6 — Wed, 03 Nov 1999 13:11:49 GMT

How can I sync the time on 2 HP9000 K systems?

Re: Time Sync

David Anderson_18 — Wed, 03 Nov 1999 13:39:13 GMT

The best way is xntpd. The man pages have the details. The best way is to use
the daemon during run time and ntpdate only at boot, which may already be in
your config files depending which version you are using of HP-UX. You can also
synchronize xntpd out to the internet so you should never have to set the
date/time again.

First, enable NTP at boot time in the /etc/rc.config.d/netdaemons file. Go to
the section called "xntp configuration" and follow the instruction including
setting up a /etc/ntp.conf file.

Re: Time Sync

Gary Jackson_6 — Thu, 04 Nov 1999 15:32:16 GMT

Dave, can you be more specific? I'm running HP-UX 10.20 on a HP9000 800 series
K system.

Re: Time Sync

Paul Winchcombe_1 — Fri, 05 Nov 1999 03:45:11 GMT

If you don't have any external time source to sync to. Then try following on
Server A

/etc/ntp.conf should look something like
server 127.127.1.1

Then start /usr/sbin/xntpd daemon on Server A

If you run ntpq -p you should see that the xntpd is running.

On Server B run ntpdate -b ServerA_ipaddress (this will step Server B time to
Server A's time - do this in downtime)

On Server B vi /etc/ntp.conf
peer Server_A_ip_address

Then run /usr/sbin/xntpd running ntpq -p on Server B should show that it has
found Server A as a time source.

When Server B has selected Server A as a time source it will place a + at the
beginning of the line.

This is all from memory and I am sorry if there are mistakes, I currently have
not access to a test machine to confirm procedure.

Be sure to vi /etc/rc.config.d/netdaemons to make changes permanent.

Regards

Paul

Re: Time Sync

Nancy Hubert_1 — Fri, 05 Nov 1999 10:56:00 GMT

Gary,

for more documentation on NTP, you can go on http://docs.hp.com

Click on HP-UX 10.X Release Documentation
then select -> Networking and communications topic.

Look for the manual "Internet Services, Installing and Administering for HP-UX
10.20"

The Chapter 8 is "Configuring NTP".

Nancy