Medusa DS9 Security System

It's not a panacea, it's not perfect, but it is a very interesting piece of software.
What Next?

The Medusa development team is working heavily on it. They want to make Medusa a bit more object-oriented. That means you'll be better able to handle system objects to set their properties. They want to port it to other platforms (currently, only Linux/Intel is supported) and create a front end which will allow the administrator to create and configure security schemes more easily.

Medusa was not tested extensively on multiprocessor systems, but those who tried it didn't report any serious problems. Medusa needs a bit more detailed and better documentation. Constable configuration scripts can be truly complicated, so some form of automatic configurator will probably appear in future versions. You can write your own front end to Medusa, which can create the needed security model and implement it by using Constable configuration.

Medusa is a very interesting system, not only with security functionality. It will probably never appear in the official kernel, but can be used as an add-on package to increase the security of your Linux system.



Robert Dobozy ( is a SAP R/3 Technical consultant. He has worked with Linux since 1995, and is the co-founder and current president of the Slovak Linux Users' Group (SkLUG). All his free time is spent with his 20-month-old daughter and programming, mostly in Perl and PHP.