[SATLUG] group permissions

Chuck learstar at satx.rr.com
Mon Feb 27 18:21:12 CST 2012


On 12-02-27 01:11 PM, Bruce Dubbs wrote:
> Chuck wrote:
>> My name is Chuck Lowe.  I Just signed up today.  I am relatively new 
>> to Linux and I am presently using Ubuntu 11.10 on my machine.  I am 
>> in the midst of studying permissions and group management.
>>
>> I can't seem to get a handle on the understanding of how the computer 
>> interacts with the users in a group. Is there a book out there that 
>> can describe the structure of a group and how it provides security ?
>>
>> In other words I'm looking for a source that can show me step by step 
>> what takes place when you setup a group.  How it works, and why the 
>> group provides more security than single users working on a project 
>> individually.
>
> The group is just a list of user IDs.  The permission system allows 
> access to non-owners of a file via the 'group' and 'other' 
> permissions.  If the permissions of a group allow access and you are 
> in the group, then it allows you to have access.
>
> You may want to just google 'linux permissions' for a starting point.
>
>   -- Bruce
Bruce, Thanks for the info, I'll look it up shortly,       Chuck


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