[57873] in North American Network Operators' Group
Re: Open relays and open proxies
daemon@ATHENA.MIT.EDU (Adi Linden)
Fri Apr 25 12:43:17 2003
Date: Fri, 25 Apr 2003 11:42:29 -0500 (CDT)
From: Adi Linden <adil@adis.on.ca>
To: John Payne <john@sackheads.org>
Cc: Daniel Concepcion <dani@danielcp.net>, NANOG <nanog@merit.edu>
In-Reply-To: <2147483647.1051266088@[192.168.1.101]>
Errors-To: owner-nanog-outgoing@merit.edu
> Amazingly, even though I am posting in this thread... it is *not* about
> spam.
> 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.
It's the spam that cought my attention. QoS usually only becomes an issue
when a single host produces massive amounts of traffic. Because of the way
our network works I rarely get to know what is actually causing the
problem, I just ACL the affected ip until the problem has been resolved.
Adi
