[ntp:questions] Finding out where ntpd gets its ntp.conf file
unruh-spam at physics.ubc.ca
Thu Sep 4 19:02:57 UTC 2008
Joseph Gwinn <joegwinn at comcast.net> writes:
>In article <48bf5d9c$0$21355$c30e37c6 at pit-reader.telstra.net>,
> "Peter J. Cherny" <peterc at luddite.com.au> wrote:
>> Joseph Gwinn wrote:
>> > 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
>> [peterc at tantalus ~]$ strings /usr/sbin/ntpd|grep ntp.conf
>In the RHEL case, this would find exactly the wrong copy of ntp.conf,
>being the one we were changing to no avail, not the one that NTP was in
Which one was ntp in fact using?
>> [peterc at tantalus ~]$ strace -f -o x /usr/sbin/ntpd -g
>I'll have to look into this. It sounds like it might be general enough.
>> [root at tantalus ~]# grep ntp.conf x
>> 3351 open("/etc/ntp.conf", O_RDONLY) = 4
>Doesn't this assume that the correct "ntp.conf" file is called ntp.conf?
>It may be common, the standard convention, but it is not required.
>The whole point is to find the correct file without making assumptions,
>because on a strange computer strange things may have been done.
yes, but then do strace as above and look through the file looking for
something that might be a configuration file. If they call it /lib/libc.so
then you are probably shit out of luck, but usually they will not do that.
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