Users

Users

[Salvo Giuffrida]

Good morning, I'm new to SELinux, and I didn't yet understand for what 
things is used the first part of the security context: the user part. From 
what I see, the security server uses only the information from the role and 
the domain/type of the subject/object, to take his decision...So, what's the 
use of the user part?
Thanks a lot

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Re: Users

[Erich Schubert]

Hi Salvo,
> the domain/type of the subject/object, to take his decision...So, what's 
> the use of the user part?

Which roles are acceptable.
A user logged in as user_u for example can never become sysadm_r. unless
there is a way for him to switch his identity too, that is.
The only identity switch I'm aware of is sysadm_u -> system_u when
running init scripts IIRC.

The roles work the same way, they define which types are acceptable. The
question I don't know the answer to is why we have these three levels,
and not four or two or whatever. ;-)
Probably because they suit our mind model best.
user identity, role, application domain

Regards,
Erich Schubert
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Re: Users

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Re: users

[Morten K. Poulsen]

Mads Martin Joergensen wrote:
> * Morten K. Poulsen <morten@afdelingp.dk> [Jun 27. 2008 00:42]:
>> mattias wrote:
>>> how to see all subscribed users on my own list?
>> cat LISTDIR/{subscribers,digesters,nomailsubs}.d/*
> 
> $ mlmmj-list -L LISTDIR

Or that ;-)	

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Morten K. Poulsen <morten@afdelingp.dk>
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Re: users

[Mads Martin Joergensen]

* Morten K. Poulsen <morten@afdelingp.dk> [Jun 27. 2008 00:42]:
> mattias wrote:
> >how to see all subscribed users on my own list?
> 
> cat LISTDIR/{subscribers,digesters,nomailsubs}.d/*

$ mlmmj-list -L LISTDIR

-- 
Mads Martin Joergensen, http://mmj.dk
"Why make things difficult, when it is possible to make them cryptic
 and totally illogical, with just a little bit more effort?"
                                 -- A. P. J.

Re: users

[Morten K. Poulsen]

mattias wrote:
> how to see all subscribed users on my own list?

cat LISTDIR/{subscribers,digesters,nomailsubs}.d/*

-- 
Morten K. Poulsen <morten@afdelingp.dk>
http://www.afdelingp.dk/

users

[mattias]

how to see all subscribed users on my own list?