Simplicity is a form of art...

Testing with permissive domains
by Sven Vermeulen, post on Mon 18 May 2015

When testing out new technologies or new setups, not having (proper) SELinux policies can be a nuisance. Not only are the number of SELinux policies that are available through the standard repositories limited, some of these policies are not even written with the same level of confinement that an administrator might expect. Or perhaps the technology to be tested is used in a completely different manner.

Without proper policies, any attempt to start such a daemon or application might or will cause permission violations. In many cases, developers or users tend to disable SELinux enforcing then so that they can continue playing with the new technology. And why not? After all, policy development is to be done after the technology is understood.

Migrating to SELinux userspace 2.4 (small warning for users)
by Sven Vermeulen, post on Thu 30 October 2014

In a few moments, SELinux users which have the \~arch KEYWORDS set (either globally or for the SELinux utilities in particular) will notice that the SELinux userspace will upgrade to version 2.4 (release candidate 5 for now). This upgrade comes with a manual step that needs to be performed …

If things are weird, check for policy.29
by Sven Vermeulen, post on Thu 17 April 2014

Today we analyzed a weird issue one of our SELinux users had with their system. He had a denial when calling audit2allow, informing us that sysadm_t had no rights to read the SELinux policy. This is a known issue that has been resolved in our current SELinux policy repository but …