The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

25.2.4.3 Setting SELinux Policies

Note

You cannot change the policy type of a running system.

You can set the default policy type in the Status view of the SELinux Administration GUI.

Alternatively, to configure the default policy type, edit /etc/selinux/config and set the value of the SELINUXTYPE directive to targeted or mls.