[57860] in North American Network Operators' Group
Re: Open relays and open proxies
daemon@ATHENA.MIT.EDU (Daniel Concepcion)
Fri Apr 25 10:37:56 2003
From: Daniel Concepcion <dani@danielcp.net>
To: John Payne <john@sackheads.org>, NANOG <nanog@merit.edu>
Date: Fri, 25 Apr 2003 16:31:33 +0200
In-Reply-To: <2147483647.1051266088@[192.168.1.101]>
Errors-To: owner-nanog-outgoing@merit.edu
> > 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.
Regards,
Daniel
