This 7-page white paper from IBM's T.J. Watson Research Center summarizes the currently available security features in typical Linux distributions, in addition to other security services and products that can be added. Quoting from the introduction . . .

“We also discuss ongoing research and development in future versions of Linux that will address emerging security requirements. In this summary, we focus on security requirements relevant to enterprise-level Internet servers. We show that current Linux distributions provide good security features, equivalent to other comparable operating systems. In addition, numerous optional services and products have been developed that provide further enterprise-level security functionality. The Linux community has also recognized the need for a single framework upon which this much of this functionality can be leveraged, called the Linux Security Modules (LSM). IBM should actively participate in making LSM a viable framework for meeting enterprise requirements and help the Linux community add further services to Linux to enable future systems to substantially reduce e-business security risks . . .”

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