On Fri, Jun 07, 2002 at 01:10:00AM -0700, Professional Software
Engineering wrote:
At 01:03 2002-06-07 -0400, Derek Battams did say:
I just installed procmail 3.15.2 from the source tar file. I then setup
postfix to use procmail as the LDA. Everything seemed fine except that I
can't create a log file.
Are you positive that the procmail binary which is suit root is the binary
that is actually being invoked, and that there isn't a different binary
sitting in some other directory (say, because the distro you're using
chooses to put things elsewhere)? /usr/bin vs. /usr/local/bin or somesuch?
{08:57am} [derek(_at_)penguin] (/etc)>whereis procmail
procmail: /usr/bin/procmail /usr/share/man/man1/procmail.1
{08:57am} [derek(_at_)penguin] (/etc)>ls -l /usr/bin/procmail
-rwsr-sr-x 1 root mail 70324 Jun 7 08:35 /usr/bin/procmail*
What _exactly_ is your LDA configuration in postfix (the procmail
arguments). Postfix may not be passing a -d argument and instead be
invoking it _as_ the user (that shouln't necessarily cause this sort of
problem, but it'd be useful to know). IIRC, Postfix does invoke the LDA
_as_ the user, so if the actual invoked binary isn't suid, you'd be getting
_exactly_ what you're experiencing now.
From Postfix's main.cf:
mailbox_command = /usr/bin/procmail
As a first test, this is my /etc/procmailrc file:
LOGFILE=/etc/procmail.log
COMSAT=no
It shouldn't really matter here, but who _owns_ /etc/procmailrc, and what
are the perms on it?
{09:00am} [derek(_at_)penguin] (postfix)>ls -l /etc/procmailrc
-rw-r--r-- 1 root root 102 Jun 7 08:48 /etc/procmailrc
When you track this one down, I'd like to know - it'd be a useful test to
add to procdiag (actually, so would the LDA check for postfix).
I've now even rebuilt an RPM from my distro's (Trustix Secure Linux)
source RPM of v3.15.2 and I get the same results, yet on my production
system the suid procmail binary works as expected. The only thing I did
to the tar file from procmail.org and to the src RPM was add the
suggested change to src/authenticate.c as suggested here:
http://www.rosat.mpe-garching.mpg.de/mailing-lists/procmail/2002-03/msg00248.html
The one liner is suppose to force procmail to use Maildirs as the
default mailbox for users (which is working according to 'procmail -v').
Other than that I did nothing else to the tar file or the src RPM other
than following appropriate directions for building and installing.
This one's really got me stumped! :-( Any help at all would be greatly
appreciated.
Thanks,
Derek
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