Re: MLS telnet question

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On Wednesday 14 April 2010 08:23:02 am Benedict, Phillip M wrote:
> Thanks, I will take another look at Netlabel's fallback/static labeling.
> So how can I verify if my kernel (the default RHEL 5.3 kernel 2.6.128) has
> Netlabel support?

While the RHEL5.x kernels have NetLabel support, it is very basic as it 
predates most of the labeled networking improvements that have been made in 
the past years.  Unfortunately, this means that the fallback/static peer label 
feature is not part of RHEL5.

> Also I currently have separate ssh daemons running at
> certain sensitivities (runcon) and bound to specific IP addresses
> (separate sshd_config files). Will fallback labeling impact my ssh setup?

You'll need to be more specific about what you mean by "impact".

Will NetLabel affect how you bind the multiple SSH daemons?  No.  Will 
NetLabel affect how the SSH daemons are labeled?  No.  Will NetLabel allow you 
to assign peer labels to incoming SSH traffic?  Yes.  Will this mean I'll need 
to change my SELinux policy to add the necessary controls?  It depends.

> -----Original Message-----
> From: Paul Moore [mailto:paul.moore@xxxxxx]
> Sent: Tuesday, April 13, 2010 5:55 PM
> To: Benedict, Phillip M
> Cc: Michal Svoboda; selinux@xxxxxxxxxxxxx
> Subject: Re: MLS telnet question
> 
> On Tuesday 13 April 2010 12:42:36 pm Michal Svoboda wrote:
> > Benedict, Phillip M wrote:
> > >    The network does not carry any cipso data for evaluation by my
> > >    server, so I don’t think I can use netlabel.
> > 
> > You can use the fallback label feature that can assign labels
> > statically per remote IP.
> 
> NetLabel fallback/static label example configuration:
> 
>  * http://paulmoore.livejournal.com/1758.html

-- 
paul moore
linux @ hp


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