[Mailman-Users] Messages silently disappearing
Harald.Meland at usit.uio.no
Wed Feb 10 17:59:06 CET 1999
> Hi again.
> I did a
> ls -ld /home/mailman/data
> and got this.
> drwxrwsr-x 2 root mailman 512 Feb 9 17:37 data
> That is exactly how mailman installed itself. (I was root when I did
> the install.)
* Mailman complains that it cannot create files in the
* /home/mailman/data directory is writable by group "mailman"
Conclusion: Mailman does not have write access where the "mailman"
group has write access. Or your system could be seriously screwed up,
of course -- but that's not a very productive way of thinking :)
How things _should_ be working:
* sendmail receives a message for a mailman address
* sendmail spawns /home/mailman/mail/wrapper, and pipes the message
* mail/wrapper is a setgid "mailman" (or whatever) binary. It checks
whether it's real, pre-setgid GID is equal to the --with-mail-gid
GID compiled into Mailman. If the test succeed, proceed, otherwise
log error to syslog.
* Control is then passed on to python, everything running under the
effective GID caused by the setgid mail/wrapper binary.
* Only after control has been passed to python will (mail-related)
things be written to /home/mailman/logs/*
Things to check, off the top of my head:
* Is /home/mailman/mail/wrapper installed setgid:
$ ls -l /home/mailman/mail/wrapper
-rwxr-sr-x 1 mailman mailman 10988 Jan 28 14:19 /home/mailman/mail/wrapper
* Is the partition you have installed Mailman on mounted with any
funky mount(8) options, e.g. "nosuid" (On linux, mount(8) options
are listed when doing "cat /proc/mounts")?
> The following, I discovered, does cause the messages to be delivered.
> chmod +s /usr/bin/python
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