[Beowulf] Security issues

[Scott Atchley]

On Oct 25, 2008, at 11:17 PM, Marian Marinov wrote:

> Also a good security addition will be adding SELinux, RSBAC or  
> GRSecurity to
> the kernel and actually using any of these.

Bear in mind, that there may be performance trade-offs. Enabling  
SELinux will cut 2 Gb/s off a 10 Gb/s link as measured by netperf's  
TCP_STREAM.

I am not saying don't use SELinux, but simply be aware of what impact  
it will have.

Scott