adjust system time

[lawrenzo]

Hello,

I am working on a system where ntp will not start and I believe it is due to the clock being out by 1.5 hrs ...

I have adjusted the time by speeding up the time on other unix systems however I cannot find an option to do this on tru64 ...

can some tell me how to speed up the clock until it reaches the desired time?

thanks

Chris.

[Ivan Ferreira · Accepted solution]

Do you want to adjust the time slowly?

You have the option to use ntpdate, probably your best option.

[lawrenzo]

also after doing some more reading I found out that where my ntp.conf file has a server entry pointing to 127.127.1.0 which is specifying its own internal clock

I presume that the clock is out of sync - how can I bring this back in line,

on other O/S i can run

# date -a +/-
how can I perform this on my tru64 box?

Thanks

Chris

[lawrenzo]

Hi yes I could do with it adjusting slowly rather than running date

I have started NTP but expect this to fail so will look into ntpupdate options.

Thanks.

[lawrenzo]

how can I get the system to slowly catch up with the ntpdate command

I have read the man page and am not sure if I run the command the clock will just bring the system to the current time?

Thanks

Chris

[Ivan Ferreira]

With ntpdate is not possible, so I created a shell script to increase your clock by the number of specified seconds:

if [ $# -eq 0 ]
then
echo "Usage $0 "
else
INCR=$1
THIS_SECOND=`date +%S`
STEP=`expr $THIS_SECOND + $INCR`
date +"%m%d%H%M.%S"
if [ $STEP -lt 10 ]
then
date `date +"%m%d%H%M.0$STEP"`
else
date `date +"%m%d%H%M.$STEP"`
fi
fi


Some examples of usage:

adjust_time 2

while true
do
adjust_time 1
done

[Rob Leadbeater]

Hi Chris,

The man pages for xntpd suggests that you should be able to use the -g option to allow corrections of more than 1000 seconds...

http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_HTML/MAN/MAN8/0308____.HTM

As previously mentioned, you won't be able to use ntpdate as that changes the time immediately.

Hope this helps,

Regards,

Rob

[Mark Poeschl_2]

You never really say, but do you have an external NTP server with an accurate time source to point NTP to? The 127.127.1.0 entry in your ntp.conf suggests possibly not. If you can't get to an external NTP server you'll probably be right back in the same boat in a few weeks or months.