[j-nsp] Decoding DDOS messages

Saku Ytti saku at ytti.fi
Wed Mar 18 12:18:18 EDT 2020


I'm your BGP speaker.

I set SPORT to 179
I access your SSH port

On Wed, 18 Mar 2020 at 18:16, John Kristoff <jtk at depaul.edu> wrote:
>
> On Wed, 18 Mar 2020 16:02:09 +0000
> Saku Ytti <saku at ytti.fi> wrote:
>
> > It is completely broken, you use 'port' so you expose every port in your system.
>
> Ha, OK thanks.  I think that would require some not so easy spoofing
> unless I'm missing something.  We can convert any statement that just
> uses port to directional, which I think will require additional rules
> to tighten it up.  Feel free to submit example configs.
>
> John



-- 
  ++ytti


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