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.TH "mcs" "8" "8 Sep 2005" "dwalsh@redhat.com" "mcs documentation"
.SH "NAME"
mcs \- Multi-Category System
.SH "DESCRIPTION"
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
.I /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.
.P
Examples of file labels would be PatientRecord, CompanyConfidential etc.
.SH "SEE ALSO"
selinux(8), chcon(1)
.SH FILES
/etc/selinux/{SELINUXTYPE}/setrans.conf