[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Can A Web Site Be Reliably Defended Against DoS Attacks?
On Thu, 2004-02-05 at 09:16, jcowan@r... wrote: > 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). this has problems for highly mobile users - which we have lots of, and the reverse addressing stuff doesn't work too well because i can sit at home on my domain - zenucom.com, attached from a dynamic ip address that reverses as iprimus, (forward iserver.zenucom.com resolves to the dynamic address), and i don't really want to route everything through my main server because fixed ip address services in australia cost from 10c/Mbyte upwards depending on speed. gets worse when i go to china..... a penny an email might work .... particularly if you run your own mail server. for a change i get paid to receive mail, although i think that scheme should charge the sender based on the message cost plus a margin, min charge 1 penny - like our 1900 telephone services i don't see opt in mail as a solution because we already have problems with spoofed email addresses. and vpn's don't help because they have to accept all traffic before they start filtering .... etc
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