Snort mailing list archives

Re: new to snort


From: Matt Kettler <mkettler () evi-inc com>
Date: Mon, 07 Feb 2005 13:21:15 -0500

Ahh, good point, I missed the "mail" part of the original question..

You probably want flags:S+ as well, unless you want to log every packet in the mail transfer, and not just the initial connection request.

At 12:13 PM 2/7/2005, Leon Ward wrote:
I think you may want to specify a destination port of 25 there as well
(for SMTP outbound).

alert tcp $HOME_NET any -> $EXTERNAL_NET 25 (msg:"LOCAL traffic from
home to external";)

-Leon

>
On Mon, 2005-02-07 at 11:25 -0500, Matt Kettler wrote:
> At 10:27 AM 2/7/2005, Jürgen Schinker wrote:
> >can somebody write me a rule to detect simple mail Traffic from HOME_NET ->
> >EXTERNAL_NET?
>
> alert ip $HOME_NET any -> $EXTERNAL_NET any (msg:"LOCAL traffic from home
> to external";)



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