Re: [exim] Couldn't chown message log

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Autor: Stephen Gran
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A: exim-users
Assumpte: Re: [exim] Couldn't chown message log
On Wed, May 13, 2009 at 06:26:08AM +0800, W B Hacker said:
> Stephen Gran wrote:
> > On Wed, May 13, 2009 at 02:41:47AM +0800, W B Hacker said:
> >> Peter Bowyer wrote:
> >>> On 12/05/2009, Laurent Le Moine <laurent.le.moine17@???> wrote:
> >>>> -rwxr-xr-x 1 root root    982424 août 13  2008 /usr/sbin/exim
> >>> The exim binary needs the suid bit set.

> >>>
> >>> Peter
> >>>
> >> '... when used on Linux'
> >
> > 'when you want deliveries to run as a user other than the user the
> > listener runs as'
> >
> > It's nothing to do with Linux vs. BSD. Please keep editor/OS/etc wars
> > in the pub where they belong.
>
> Have you looked at the OP's problem?


Yes.

> Are you aware that Jason's 'C1' config doesn't even make a 'user' choice in the
> delivery phase? Hard-coded nor lookup.


Take a look at what check_local_user does.

> ... or that files in /var/log do NOT ordinarily change ownership?


"Couldn't chown message log /var/spool/exim/msglog//1M3qaK-0000iG-0v" is
not in /var/log, and is not a log file.

> Did you miss that the OP's file ownerships were at variance with those Jason's
> C1 config and a 'common' Exim conf expect? EG: 'exim:exim'


The only thing not owned by exim was the binary itself. Not really a
problem.

> Suggest *less* time in that pub.


Before we both get all stroppy about this, let's both take a step back.

The OP is clearly new to exim. The normal install is setuid root
to enable delivering as different users to /var/mail/$local_part.
When you suggested to a new user that exim doesn't need to be suid root,
I wanted to make the point that in most normal use cases, it really does,
regardless of which kernel you run. I apologize if I got your back up -
all I was trying to do was keep a new user from following a more difficult
path to usefulness than they need to.

Enough from me on this one, I think.
--
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|  Stephen Gran                  | : The hierarchy is excessive.  So is    |
|  steve@???             | the anarchy.  :-)   -- Larry Wall in    |
|  http://www.lobefin.net/~steve | <199705101952.MAA00756@???>        |

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