how to tell what ran what

Glenn McCalley techlist at
Wed Feb 15 12:29:33 PST 2006

----- Original Message ----- 
From: "Björn König" <bkoenig at>
To: "Glenn McCalley" <techlist at>
Cc: <freebsd-questions at>
Sent: Wednesday, February 15, 2006 11:13 AM
Subject: Re: how to tell what ran what

> Glenn McCalley schrieb:
> > Is there a way to find out -which- -process- calls another process?
> Each process is associated with a parent; look at the ppid column:
>    ps axo user,pid,ppid,command
> Björn
Thanks, I stated the question poorly.  My fault.
Is historical info available and is it available by file name?

I trying to find out (for example) what (unknown) program ran another
(known) program between 0900 and 1000 yesterday - something like that.

I've got a customer sending our emails that he shouldn't - I don't know
which customer it is.  The program that sends the mail is running as a cgi
so it all shows up as user "nobody".

If I can get a list of what programs, path and file name, called sendmail
over (say) the last 24 hours, one of them should jump off the page with an
unreasonable level of activitiy.


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