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
       etc.

SEE ALSO         top

       selinux(8), chcon(1)

FILES         top

       /etc/selinux/{SELINUXTYPE}/setrans.conf

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 ⟨https://github.com/SELinuxProject/selinux/wiki⟩.  If you
       have a bug report for this manual page, see
       ⟨https://github.com/SELinuxProject/selinux/wiki/Contributing⟩.  This
       page was obtained from the project's upstream Git repository
       ⟨https://github.com/SELinuxProject/selinux⟩ on 2018-02-02.  (At that
       time, the date of the most recent commit that was found in the repos‐
       itory was 2018-01-25.)  If you discover any rendering problems in
       this HTML version of the page, or you believe there is a better or
       more up-to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not part
       of the original manual page), send a mail to man-pages@man7.org

dwalsh@redhat.com                8 Sep 2005                           mcs(8)

Pages that refer to this page: mcstransd(8)

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