You probably won't be surprised to learn that I haven't actually done, or tried this, myself, but researching it I think that you can query an external NTP server from your internal NTP server WITHOUT actually updating its clock, and then compare the two for difference.
On your internal NTP server on which you want to monitor drift, set up the NTP config file with a single server entry to an external NTP/PTP server and include the server option 'noselect'.
When the NTP query runs it will not update the clock but the offset can be viewed using
or
You don't say what Unix/Linux you are running (EDIT: Sorry you posted to the HP-UX forum) and therefore I cannot say what NTP commands are implemented on it. You will have to test the function manually first and then get one of the scripting experts on this forum to help you if you need it. You will, of course, also need to include a function to update the clock for real when it gets too far adrift.
I have a script which must not be run more than once at any given time. THis script will be scheduled to run every 20 mins as a cron job.
In my script can i have logic to say if this script is already running from the previous cron, then exit.
How do i go about doing that. If you describe the... (11 Replies)
Hi guys I'm very new to unix and I have to create an awk script that detects webpage addresses from a file/webpage and outputs how many times each webpage was detected.e.g. if my file was:
(Note: The symbol " was added to stop them being created into links)
"www.google.com"... (1 Reply)
Hi guys I'm very new to unix and I have to create an awk script that detects webpage addresses from a file/webpage and outputs how many times each webpage was detected.e.g. if my file was:
www.google.com
www.facebook.com
www.google.com
the output should be:
www.google.com x2... (2 Replies)
Dear community,
what I'm try to do is deny users to run a script without parameters from command bash, but the same script should run without parameters only from crontab.
Example runs by crontab:*/5 * * * * /tmp/script.sh
Here the normal execution starts every 5 minutes
Example #1 runs by... (16 Replies)
I have to check daily 20 processes each day. The names are like Network1 Network2 Network3 ....... Network20.
There is built in utility for doing this. Following is the command to check a single network process.
check_process_status 1
If we want to check the status of Network2 then the... (6 Replies)
Hi all,
I am needing some help with a script that will search for a video file by known extensions and then do a pattern search (I'm guessing via regex) and then based on a match of one type of another move the file to an assigned directory.
I would like to do this with either a shell script... (7 Replies)
Hi forum,
So I am trying to determine the OS type with the following script:
#!/usr/bin/sh
OStype1=`uname -s`
Sunos1=SunOs
if
then
echo "This system is Linux"
exit 0
elif
then
echo "This system is SunOs"
exit 0
elif (1 Reply)
Hello there,
I am not an expert in networking related stuff but I got a requirement to create UNIX script to query our Company's internal time source via NTP for time drift detect and report it when > +/- 50ms.
I have been googling a lot but thought to post it in this forum to get a... (1 Reply)
Hello,
I have a small script and it runs from web application in below format:
pipe:///path_to_myscript.sh url1 url2 url3
myscript.sh:
#!/bin/bash
count=0
while
do
count=$((count+1))
exec 3>&1
((ffmpeg -i $1 ...... -f mpegts pipe:1 2>/dev/null 1>&3 ) 2>&1 | \
while read LINE; do echo... (9 Replies)
Discussion started by: baris35
9 Replies
LEARN ABOUT OSF1
timedsetup
timedsetup(8) System Manager's Manual timedsetup(8)NAME
timedsetup - Performs initial setup of the time server daemon (timed).
SYNOPSIS
/usr/sbin/timedsetup
DESCRIPTION
The timedsetup command is an interactive script that can be used to perform initial time service configuration for your system.
By default, timed does not start at boot time. The timedsetup script asks if you want the timed daemon to be started at boot time, and
prompts you for any options to pass to the timed daemon whenever it is invoked. The script then starts the timed daemon.
For more information on the timed options, see the timed(8) reference page.
Note
The timed daemon is provided for compatibility. Tru64 UNIX also provides support for the Network Time Protocol (NTP) through the xntpd
daemon. Compaq recommends you use NTP for time synchronization. If your system is configured to run NTP, the timedsetup command passes
the -E and -M options to the timed daemon by default.
If you plan to run both the timed daemon and NTP, you should configure NTP first.
RESTRICTIONS
In configurations with two or more hosts each connected to the same two or more subnetworks, only one of the host can run the timed with
the -M option.
FILES
Specifies the command pathname The timed startup and shutdown script Specifies timed parameters pertinent to a specific system
SEE ALSO
Commands: timed(8), xntpd(8)timedsetup(8)