mcs(8)                        mcs documentation                       mcs(8)

NAME         top

       mcs - Multi-Category System

DESCRIPTION         top

       MCS (Multiple Category System) allows users to label files on their
       system within administrator defined categories.  It then uses SELinux
       Mandatory Access Control to protect those files.   MCS is a
       discretionary model to allow users to mark their data with additional
       tags that further restrict access.  The only mandatory aspect is
       authorizing users for categories by defining their clearance in
       policy.  However, MCS is similar to MLS and exercises the same code
       paths and share the same support infrastructure.  They just differ in
       their specific configuration.

       The /etc/selinux/{SELINUXTYPE}/setrans.conf configuration file
       translates the labels on disk to human readable form.
       Administrators can define any labels they want in this file.  Certain
       applications like printing and auditing will use these labels to
       identify the files.  By setting a category on a file you will prevent
       other applications/services from having access to the files.

       Examples of file labels would be PatientRecord, CompanyConfidential

SEE ALSO         top

       selinux(8), chcon(1)

FILES         top


COLOPHON         top

       This page is part of the selinux (Security-Enhanced Linux user-space
       libraries and tools) project.  Information about the project can be
       found at ⟨⟩.  If you
       have a bug report for this manual page, see 
       ⟨⟩.  This
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       COLOPHON (which is not part of the original manual page), send a mail
       to                8 Sep 2005                           mcs(8)