5.11.3. Creating a User With a Specific MLS Range
Follow these steps to create a new Linux user with a specific MLS range:
- Add a new Linux user via the
useraddcommand and map the new Linux user to an existing SELinux user (in this case,user_u):~]#
useradd -Z user_u john - Assign the newly-created Linux user a password:
~]#
passwd john - Run the
semanage login -lcommand to view the mapping between SELinux and Linux users. The output should be as follows:Login Name SELinux User MLS/MCS Range __default__ user_u s0 john user_u s0 root root s0-s15:c0.c1023 system_u system_u s0-s15:c0.c1023
- Define a specific range for user
john:~]#
semanage login --modify --seuser user_u --range s2:c100 john - Run the
semanage login -lcommand to view the mapping between SELinux and Linux users. Note that the userjohnnow has a specific MLS range defined:Login Name SELinux User MLS/MCS Range __default__ user_u s0 john user_u s2:c100 root root s0-s15:c0.c1023 system_u system_u s0-s15:c0.c1023
- To correct the label on john's home directory (if needed), run the following command:
~]#
chcon -R -l s2:c100 /home/john
