jails, cron and sendmail

Daniel Gerzo danger at FreeBSD.org
Sun Aug 27 00:27:04 UTC 2006


Hello Dirk,

Sunday, August 27, 2006, 2:13:03 AM, you wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1

> Hello,

> I have the following problem: since I need and do not like any kind of
> smtp activity in my jails (there's no 127.0.0.1 in a jail, all services
> listen to the jails external interface), I put those lines into my
> /etc/rc.conf:

> sendmail_enable="NO"
> sendmail_outbound_enable="NO"
> sendmail_submit_enable="NO"

> this works fine: nothing listening on the jails interface... except that
> cron tries to deliver its status mails and fails.

> While failing, sendmail seems to hog cpu and finally floods
> /var/spool/clientmqueue and /var/log/maillog.

> My quick fix now is to replace /usr/libexec/sendmail/sendmail with
> /usr/bin/true in /etc/mail/mailer.conf, however: it seems problematic
> that cron insists on a mail sub system, when all it should do is execute
> stuff periodically. There should be an option to let it only log to a file.

check /etc/defaults/periodic.conf

> For my jails this would make sense, too: I never read root's mails
> locally, anyway.

> Am I missing the obvious solution here?

>   erdgeist

-- 
Best regards,
 Daniel                            mailto:danger at FreeBSD.org



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