With NSA Security-Enhanced Linux now integrated into the 2.6 kernel and making its way into distributions, an increasing number of people likely will be installing SELinux and experimenting with it.

The release of Fedora Core 5 added several new features to SELinux, one of which is Multi-Category Security (MCS). The purpose of MCS is to protect data confidentiality, which means it will prevent ...

The profound growth in Internet-connected devices has heightened the need for secure systems, beyond the traditional bounds of enterprise IT gateways and servers. Embedded devices from wearables to ...

Vincent Danen gets into some of the basics of working with SELinux. Learn how to work with contexts, which include ports, processes, files, and directories, and labels. Last time, I introduced you to ...

Many of us got used to the simple owner, group, and other model of Unix security so long ago that we were somewhat taken back when the setfacl and getfacl commands were introduced and added complexity ...

I get it–SELinux is challenging, and when your applications or services are prevented by the security layer, your first inclination is to set it to either Disabled or Permissive. In a time when ...

The access controls typically support inheritance along the lines of the directory hierarchy. We will not delve into all these details but restrict the discussion to the differences of the three ...