To display the mapping between SELinux and Linux user accounts, select the User Mapping view in the the SELinux Administration GUI.

Alternatively, enter the following command to display the user mapping:

# semanage login -l

Login Name                SELinux User              MLS/MCS Range            

__default__               unconfined_u              s0-s0:c0.c1023           
root                      unconfined_u              s0-s0:c0.c1023           
system_u                  system_u                  s0-s0:c0.c1023  

By default, SELinux maps Linux users other than root and the default system-level user, system_u, to the Linux __default__ user, and in turn to the SELinux unconfined_u user. The MLS/MCS Range is the security level used by Multilevel Security (MLS) and Multicategory Security (MCS).