NTP configuration in HPUX

[senthil_kumar_1]

Hi All,

I am using HP-UX 10.20, 11.00, 11.11, 11.23 adn 11.31.

Having folloing questions about configuring NTP on all above mentioned OS:

1)How to view if NTP is already configured?

2)Is there any difference in configuring NTP among above mentioned OS?

3)How to configure NTP?

[Pete Randall]

SAM


Pete

[johnsonpk · Accepted solution]

1)How to view if NTP is already configured?

ntpq -p

2)Is there any difference in configuring NTP among above mentioned OS?
no

3)How to configure NTP?

edit /etc/rc.config.d/netdaemons and change XNTPD variable value to 1

edit /etc/ntp.conf and add ntp server entry

server

start xntpd service
/sbin/init.d/xntpd start


check the ntp sync status

ntpq -p

[Kanagaraj]

1)How to view if NTP is already configured?

#ntpq -p -->This command will list you ntp servers,stratum delay time, offset & disp

2)Is there any difference in configuring NTP among above mentioned OS?

>>>NO

3)How to configure NTP?

>Edit /etc/ntp.conf (configuration file)

put ntp server entries in ntp.conf file.
drift file path

>Edit /etc/driftfile
put reuired value(as per the timezone)

>edit /etc/rc.config.d/netdaemons

XNTPD=1 (For start ntp daemon automatically at nextboot)

start daemons.

/sbin/init.d/xntpd start

[James R. Ferguson]

Hi Senthil:

As usual, if you consult the vast documentation stable at docs.hp.com you could easily answer these questions. For example:

http://docs.hp.com/en/B2355-91060/ch04.html

You should configure at least three (3) time sources for the best, most accurate timekeeping. The NTP "pool" is a wonderful source sink:

http://www.pool.ntp.org/en/

Regards!

...JRF...

[senthil_kumar_1]

Hi All,

Time zone is fetched from local (/etc/TIMEZONE) or remote server (NTP server)?

[Patrick Wallek]

As far as NTP is concerned, the time zone is irrelevant.

NTP is based on GMT/UTC time, as is the internal clock on the system.

[James R. Ferguson]

Hi (again):

> Time zone is fetched from local (/etc/TIMEZONE) or remote server (NTP server)?

No. NTP works in UTC (GMT, if you prefer). NTP doesn't care about localtime zones. All synchronization is done in UTC. In fact, for NTP to synchronize your server's clock, your server's clock must be close to the correct UTC time. Check it with:

# date -u

Regards!

...JRF...