• To: Dare Obasanjo <dareo@m...>
• Subject: Re: Can A Web Site Be Reliably Defended Against DoS Attacks?
• From: Alaric B Snell <alaric@a...>
• Date: Wed, 04 Feb 2004 21:15:55 +0000
• Cc: Rich Salz <rsalz@d...>,"Bullard, Claude L (Len)" <clbullar@i...>,jcowan@r..., xml-dev@l...
• In-reply-to: <830178CE7378FC40BC6F1DDADCFDD1D1D51854@R...>
• References: <830178CE7378FC40BC6F1DDADCFDD1D1D51854@R...>
• User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030704 Debian/1.4-1

Dare Obasanjo wrote:
> 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?

On many UNIX systems, just mount /home as not allowing execution, so 
people need root priveleges to install software, and non-installed 
software can't be run.

UNIX systems don't really have this concept of an executable file 
sitting there waiting to be clicked on, anyway - things generally need 
to be in your path to get executed to begin with. If I got sent an 
executable file as an attachment, I'd need to save it to my home 
directory then open up a shell window and explicitly invoke it, with a 
"./" prefix to override the path and execute a file from the current 
directory.

ABS

• Follow-Ups:
  • RE: Can A Web Site Be Reliably Defended Against DoS Att acks?
    • From: "Michael Kay" <michael.h.kay@n...>
  • Re: Can A Web Site Be Reliably Defended Against DoS Attacks?
    • From: Rick Marshall <rjm@z...>

• References:
  • RE: Can A Web Site Be Reliably Defended Against DoS Att acks?
    • From: "Dare Obasanjo" <dareo@m...>

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