Date: Tue, 8 Jan 2008 13:26:16 -0500 From: "Philip M. Gollucci" <philip@ridecharge.com> To: Jerahmy Pocott <quakenet1@optusnet.com.au> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Sendmail: "exposed" root, why? Message-ID: <4783C048.9080403@ridecharge.com> In-Reply-To: <8EE4A2AA-E15D-4C07-AFBC-061A4595DA82@optusnet.com.au>
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Jerahmy Pocott wrote:
> Hello,
>
> From the sendmail documentation:
>
> "There are always users that need to be "exposed" -- that is,
> their internal site name should be displayed instead of the
> masquerade name. Root is an example (which has been
> "exposed" by default prior to 8.10)."
>
> Is there actually any reason why root needs to be "exposed"?
>
> Root is set to an external address in aliases and it really
> needs to be masqueraded in order to for it to get delivered,
> but would that cause problems with anything?
>
> How do you stop sendmail from doing this, I don't see any
> directive to NOT expose root, only options to expose other
> addresses as well.. Perhaps there is a better way to send
> system mailed logs to an external address that doesn't send
> them from root?
>
> Thanks for any info!
There is no directive, but you can edit the resultant .cf file
and remove the line
C{E}root
or root from that line if more than one user.
Be warned, you _will_ break /etc/crontab and periodic scripts mail delivery.
The reason it needs to be exposed is probably these scripts because
other wise the from address for daily security scripts will be
root@<masquerade> rather than root@machine.domain. Now, it so happens
that most of these e-mails have the machine name in the subject or what not.
--
------------------------------------------------------------------------
Philip M. Gollucci (philip@ridecharge.com)
o:703.549.2050x206
Senior System Admin - Riderway, Inc.
http://riderway.com / http://ridecharge.com
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