On Tue, 4 Jan 2000, Chris Knipe wrote:
> For the first time since I have been using the popular Exim mailer daemon,
> I have come accross an possible (and fairly serious) DoS.
I have not the time to read your code, but a quick glance suggests that
you are just hammering the victim with many SMTP calls. Exim can be
protected against such an attack by setting smtp_accept_max and
smtp_max_per_host.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
