On 09/28/2011 08:37 AM Daminto Lie wrote:
Hi,
I am getting the following error message when trying to implement LDA Dovecot 1.2.9 with virtual users:
Sep 28 15:59:33 server1 postfix/pipe[3041]: 28BEC2400A1: to=msmith@example.com, relay=dovecot, delay=2361, delays=2361/0.01/0/0.03, dsn=4.3.0, status=deferred (temporary failure. Command output: /usr/lib/dovecot/deliver must not be both world-executable and setuid-root. This allows root exploits. See http://wiki.dovecot.org/LDA#multipleuids )
I do not know if I need to change the group to secmail. Currently, I have as follows
-rwsr-xr-x 1 root root 933796 2011-06-10 05:36 deliver
Can I change it to any other group apart from secmail? and what does it mean by world-executable? Sorry if I ask a silly question here but keen to learn more about linux.
RTFM chmod(1)
… Here is my master.cf # delivery through dovecot dovecot unix - n n - - pipe flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -f ${sender} -d ${recipient}
Any help would be greatly appreciated.
Thank you
chgrp vmail /usr/lib/dovecot/deliver chmod o-rx !$
Regards, Pascal
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