topic Finding ntp sync servers in Operating System - HP-UX

Finding ntp sync servers

Shivkumar — Wed, 20 Jul 2005 11:34:33 GMT

Dear Sirs,

What are config files i should check to find out the name of the ntp sync server ?
It seems our servers are getting time from some sync servers.

We have the environment of hpux 11/11i.

Thanks,
Shiv

Re: Finding ntp sync servers

Jim Mallett — Wed, 20 Jul 2005 11:40:50 GMT

Check out /etc/ntp.conf, the line should begin with the word server.

An example of an external sync would be:
server ntp2.usno.navy.mil version 3 prefer

Jim

Re: Finding ntp sync servers

Steven E. Protter — Wed, 20 Jul 2005 11:54:41 GMT

ntp works the same everywhere.

ntp.conf

http://www.ntp.org has a link to good timeservers.

SEP

Re: Finding ntp sync servers

Joseph Loo — Wed, 20 Jul 2005 20:38:18 GMT

hi,

do this to find out where u r getting the NTP source from:

# ntpq -p
remote column identifies the NTP source's host name.

regards.

Re: Finding ntp sync servers

Devender Khatana — Wed, 20 Jul 2005 20:55:09 GMT

Hi Shiv,

#ntpq -p

will show you the current servers which your system is polling.

The output should be similar to
mydv101:/home/hp>>ntpq -p
remote refid st t when poll reach delay offset disp
====================================================
*myserdb LOCAL(1) 4 u 428 256 377 0.67 0.721 0.20
+myserci iocserdb 5 u 30 256 377 0.60 0.571 0.20

The one with * in the beginning in current providing synchronization. When it is not available then the one + in beginning will become the one with * in beginning. Also the one with lowest stratum is always used as first time server.

HTH,
Devender

Re: Finding ntp sync servers

Mahesh Kumar Malik — Wed, 20 Jul 2005 23:43:38 GMT

Hi Shiv

File is /etc/ntpconf

Please refer to following link which may be useful

http://docs.hp.com/en/B2355-90147/ch07s02.html?btnNext=next%A0%BB

Regards
Mahesh

Re: Finding ntp sync servers

H.Merijn Brand (procura — Thu, 21 Jul 2005 00:49:25 GMT

Use the ntp pools.

# cat /etc/ntp.conf
restrict default noquery notrust nomodify
restrict 127.0.0.1
restrict 192.92.93.0 mask 255.255.255.0
server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org
driftfile /var/lib/ntp/drift/ntp.drift
logfile /var/log/ntp
#

Enjoy, Have FUN! H.Merijn

Re: Finding ntp sync servers

Cem Tugrul — Thu, 21 Jul 2005 02:22:47 GMT

Shiv,

cat /etc/ntp.conf file of your servers
and you have to find out ntp sysnc server
information

Good Luck,

Re: Finding ntp sync servers

Devesh Pant_1 — Thu, 21 Jul 2005 17:35:16 GMT

Shiv,
Hope you have connectivity to the internet to use the outside servers for syncing. If not you will have to set up a statum server within yout internal network that will feed all the servers in your network.
Most of the replies above have already pointed out the rest.

thanks
DP

Re: Finding ntp sync servers

todd glassey — Tue, 09 Aug 2005 12:20:42 GMT

Shiv,

the NIST time servers are listed on this page from NIST.

http://tf.nist.gov/service/time-servers.html

There is a similar list on the ntp.org website. Dr. Mill's has a number of systems in the NTP.ORG pool for use, but generally these are not considered production systems.

For what it is worth, the three listed with my last name on them are located at AboveNET facilities and so have half the number of hops in their paths as the farther-away end-run systems do. if you are on the west coast try the 207.126.98.204 (Nist1-sj.glassey.com) server and if not the other two are listed as well.

have fun and good luck.

Todd Glassey
Time Guy.