The restorecon command restores the default SELinux security context of one or more files based on the rules defined in the currently loaded policy's file contexts database. This is useful after files have been moved, copied, or had their context manually altered. chcon changes a file's context to an arbitrary value, but does not use policy-defined defaults and does not persist across a full relabel. semanage manages various aspects of SELinux policy, such as port and user mappings, while setsebool toggles SELinux boolean values.