linux-kernel - Re: [2.6.25-rc5-mm1] regression: cannot run Postfix sendmail command as non-root

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Message-ID: <939d53060803170550r46a7e93ex31c166fff86bcf50@mail.gmail.com>
Date:	Mon, 17 Mar 2008 13:50:29 +0100
From:	"Benjamin Thery" <ben.thery@...il.com>
To:	"Daniel Lezcano" <dlezcano@...ibm.com>
Cc:	"Tilman Schmidt" <tilman@...p.cc>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	"David Miller" <davem@...emloft.net>, pekkas@...core.fi,
	yoshfuji@...ux-ipv6.org
Subject: Re: [2.6.25-rc5-mm1] regression: cannot run Postfix sendmail command as non-root

I also tried to reproduce your problem with Postfix (on a Debian
distro) but failed to
obtain the error message.

While googling for the error string, I found this link which report
the same kind of
error when Postfix is used with grsecurity (in 2006):

http://blog.jensthebrain.de/archives/2006/12/11/IPv6-Probleme-mit-Postfix-und-grsecurity

I barely understand German so I'm not sure it is related to your problem.

Benjamin


On Mon, Mar 17, 2008 at 11:44 AM, Daniel Lezcano <dlezcano@...ibm.com> wrote:
> Tilman Schmidt wrote:
>  > Am 13.03.2008 23:21 schrieb Daniel Lezcano:
>  >> Tilman Schmidt wrote:
>  >
>  >>> ts@...on:~/kernel> /usr/sbin/sendmail -t < patch-usb-reduce-syslog-clutter-v3
>  >>> postdrop: warning: can't open /proc/net/if_inet6 (Permission denied) - skipping IPv6 configuration
>  >>> postdrop: fatal: parameter inet_interfaces: no local interface found for ::1
>  >>> sendmail: warning: command "/usr/sbin/postdrop -r" exited with status 1
>  >>> sendmail: fatal: ts(1000): unable to execute /usr/sbin/postdrop -r: Success
>  >>> ts@...on:~/kernel>
>  >>>
>  >>> and unsurprisingly, the mail is not sent. If I do the same as root,
>  >>> everything works as usual, there is no console output from the
>  >>> sendmail command, and the mail goes out as it should. All other
>  >>> networking applications appear to be running normally.
>  >
>  >> Is it possible to have your config file used to compile the kernel ?
>  >
>  > Sure. You can find it at
>  > http://gollum.phnxsoft.com/~ts/linux/config-2.6.25-rc5-mm1
>
>  Thanks,
>
>  I was not able to reproduce it, but I think I didn't configured postfix
>  as I should had. What version do you use ?
>  If I may ask you, can you put your postfix configuration file and a
>  strace -f of your failing command ? on your website, that will help me a
>  lot to investigate.
>
>    -- Daniel
>
>
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