Subject: Re: DNS-based firewalling?
To: None <netbsd-users@NetBSD.org>
From: Matthias Scheler <email@example.com>
Date: 02/06/2005 17:36:53
In article <Pine.NEB.firstname.lastname@example.org>,
Florian Stoehr <email@example.com> writes:
> I want to block all (ALL!) SMTP traffic from the whole "attbi.com"
> IP address range for my private mail server.
Try adding something like this in "/etc/hosts.allow":
sendmail: ALL EXCEPT .attbi.com
They'll be able to get a SMTP connection but not to deliver e-mail.
But I would really recomment to use a better technology like e.g.
Matthias Scheler http://scheler.de/~matthias/