Re: Open relays and open proxies

[John Payne <john () sackheads org>]

--On Friday, April 25, 2003 4:31 PM +0200 Daniel Concepcion 
<dani () danielcp net> wrote:

> > > I think that the end of the spam and open relays will be  when the smtp
> > > servers talk only with servers  with trust.
> >
> > Amazingly, even though I am posting in this thread... it is *not* about
> > spam.
>
> Uops, sorry for the mistake ;) But for me the spam is really a big
> problem  when use open proxys or relays or misconfigured smtp servers.
>
> > Don't be fooled by the mention of open relays.  Open proxies are abused
> > for many purposes, of which spam is a minor one.  I've seen open proxies
> > in recent DoS source addresses for example.
>
> The big problem in dDoS are the smurf, virus and trojans. Generally every
> machine infected have an open proxy. But the open proxy itself isn't
> dangerous. They are only use as intermediate hop for attack machines or
> control other trojans.

Sounds like you're arguing for widespread IP level blocking of open proxies 
then :)