[3268] in RedHat Linux List
Re: Protecting sendmail?
daemon@ATHENA.MIT.EDU (James Fidell)
Thu Nov 7 19:57:14 1996
From: James Fidell <james@corp.netcom.net.uk>
To: redhat-list@redhat.com
Date: Thu, 7 Nov 1996 23:53:50 +0000 (GMT)
In-Reply-To: <m0vLd5r-001FwkC@iceonline.com> from "Borg" at Nov 7, 96 02:38:37 pm
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
You wrote:
> I guess you can prevent outside world from connecting
> to your smtp in /etc/hosts.allow and /etc/hosts.deny
> somehow, but in this case, no one will be able to send
> email to you either.
And it means started sendmail from inetd. I'd not be keen to
do that.
> Most of ISPs work that way that any other host can connect
> to them and send email, but it will still be traceable,
> not to the person who sent it but to the host from where
> it came from:
>
> [ ... deletia ... ]
>
> My point is: thousands of Unix-based ISP's work that way
> and I don't see why you would want to disable smtp.
I think it's probably a good idea for an ISP. I wouldn't necessarily
want people using just any machine as a mail-relay -- some won't
handle the load, others don't have the disk space to cope with failed
messages or might result in reducing the disk space available for other
applications and others masquerade in ways that will do strange things
to outgoing e-mail addresses.
I'm considering turning off incoming sendmail altogether on a number
of our machines...
James.
--
"Yield to temptation -- | Work: james@corp.netcom.net.uk
it may not pass your way again" | Play: james@hermione.demon.co.uk
| http://www.netcom.net.uk/~james/
- Lazarus Long | James Fidell
--
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