[mdlug] [mdlug-admin] IEEE 1394a

[Ingles, Raymond]

> From: Jeff Hanson

> According to the Wikipedia article there are some solutions like
> virtual memory mapping:
> http://en.wikipedia.org/wiki/IEEE_1394a#Security_issues

 If you load the ohci1394 module with the option "phys_dma=0", it disables
the insecure access to memory. For example, on Ubuntu, you'd add a line
like:

options ohci1394 phys_dma=0

 to the file "/etc/modules.d/options". Other distros use "/etc/modules.conf".
(This might interfere with using firewire disk drives, though. I don't have
any to check.)

 Sincerely,

 Ray Ingles                                        (313) 227-2317

 "Microsoft would OWN the low end server market today if it were
 not for open source OSs, primarily Linux... You cannot undersell
 free, and Microsoft has never won by competing on quality of
                    software." - blakestah
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