Usev permissions and USB scanners

Scott James Remnant scott at canonical.com
Tue May 5 10:17:04 UTC 2009


On Sun, 2009-05-03 at 16:16 +0300, kohen.d at gmail.com wrote:

> In the Brother support page:
> http://solutions.brother.com/linux/en_us/instruction_scn1c.html#u9
> They recommend changing the mode for USB devices to 666,  which is a
> security issue.
> I created a usbdev group and added my user to that group, added a
> group setting to that line instead of the recommended  mode change,
> and my scanner works, I think that this group should be added to the
> default installation, and the rule modified accordingly.
> What do you think?
> 
We prefer not to use groups in this way.

Instead we use ACLs on devices such as scanners so that logged in
console users can directly access the device without needing to be in
any special group.

Further access can be granted through the "Authorizations" tool.

Scott
-- 
Scott James Remnant
scott at canonical.com
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