• To: Dare Obasanjo <dareo@m...>
• Subject: Re: Can A Web Site Be Reliably Defended Against DoS Att acks?
• From: jcowan@r...
• Date: Wed, 4 Feb 2004 17:16:07 -0500
• Cc: xml-dev@l...
• In-reply-to: <830178CE7378FC40BC6F1DDADCFDD1D1D51854@R...>
• References: <830178CE7378FC40BC6F1DDADCFDD1D1D51854@R...>
• User-agent: Mutt/1.4.1i

Dare Obasanjo scripsit:

> Short of creating a mail client and server that prevented people from
> receiving mail attachments, how would you solve the problem exploited
> by this current virus on any one of the popular operating systems
> existing today?

1) Don't allow executables to be run directly out of mail messages or archives
contained in mail messages (or perhaps any archives at all).

2) Use something other than full-bore executables for screensavers (X has this
problem too, unfortunately)

3) "Friends don't let friends run as root."

4) Modify the SMTP servers used by ISPs (and their government and academic
equivalents) so they don't accept incoming mail directly from IPs assigned to
customers of other ISPs (the MAPS DUL list is an example of this).

-- 
Do what you will,                       John Cowan
   this Life's a Fiction                jcowan@r...
And is made up of                       http://www.reutershealth.com
   Contradiction.  --William Blake      http://www.ccil.org/~cowan

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