On Friday, October 04, 1996 3:26 PM, Richard Stiennon[SMTP:richards @
netrex .
com] wrote:
>At 07:07 PM 10/2/96 CDT, Hmm wrote:
>> > I would be interested in hearing how checkpoint is securing their
>>customers from SMTP based attacks! From what I have seen, they simply
>pass it
>>through to a mail machine... If that mail machine happends to be running
>>Sendmail 4.1, the attacker can blow holes right through the perimiter....?
>
>Well, how about not allowing telnet to the mail server?
>
How do you do that and not allow mail hacking?
I have tried disabling telnet to a machine, but when I telnet to that machine's port 25, I'm in.
How about firewalls that actually store mail and then hand it off to an internal mail server?
dt
_______________________________________________
Dan Tshin The Bulldog Group Inc.
Research and Development 416.594.9207:252
http://www.bulldog.ca 416.594.1473 Fax
_______________________________________________
A head is not merely a hat hangar. Just Use It.
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