[ntp:questions] Finding out where ntpd gets its ntp.conf file
joegwinn at comcast.net
Fri Sep 5 20:32:53 UTC 2008
In article <x_WdneCj6sdQ5VzVnZ2dnUVZ_gCdnZ2d at comcast.com>,
"Richard B. Gilbert" <rgilbert88 at comcast.net> wrote:
> Joseph Gwinn wrote:
> > In article <slrngbvrsh.rsh.kostecke at stasis.kostecke.net>,
> > Steve Kostecke <kostecke at ntp.org> wrote:
> >> On 2008-09-03, Joseph Gwinn <joegwinn at comcast.net> wrote:
> >>> Read the "service" shell script. It appears to get its file paths from
> >>> environment variables named after the thing being started and stopped
> >>> and accessible only in the root environment; this bit of RHEL-specific
> >>> structure is being chased down. (Does anyone know where this is
> >>> documented?)
> >> On Linux OSes init scripts are typically found in /etc/init.d/ or
> >> /etc/rc.d/init.d/ Look for one named ntp (or something containing ntp).
> > Yes, and that's where strace led me, where I found a script called ntpd.
> > How the service script interacts with this ntpd script isn't clear.
> > Environment variables seem to be implicated, but a listing of
> > environment variables is not helpful. Next week I'll digest it all.
> >>> Which brings me to a question: How does one get NTP to tell you exactly
> >>> where it is getting such things as the ntp.conf file from, all without
> >>> being able to find or see the actual command line or lines that launched
> >>> the daemon? I did not see a ntpq command that sounded plausible,
> >>> although ntpq would be an obvious choice.
> >>> This would be very useful for debugging, as each and every platform type
> >>> seems to have a different approach to handling NTP.
> >> Why not use the file location features built in to your OS to find all
> >> possible instances of ntp.conf?
> >> $ locate ntp.conf
> >> or
> >> $ find / -name ntp.conf
> >> Pipe the output of either of those commands to 'xargs ls -l' to see the
> >> datestamps of the files.
> > We did this, but could not tell which one mattered. Next week.
> > Nor is it *required* the the ntp configuration file be called ntp.config.
> > Joe Gwinn
> There MIGHT, in rare cases, be good reason NOT to call the configuration
> file "ntp.conf" (it's conf not config, unless someone changed it
> recently). IF so, both the new name and the reasons for it should be
> documented! In most cases it's best to stick with the de facto standard.
I agree completely. But I didn't set the thing up. But I do have to
figure it out and fix it. And document it. It did flummox all our
sysadmins, although as with sysadmins worldwide they are too busy.
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