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.
For information about the way that you can configure the security of an Oracle Linux system, see Chapter 3, Implementing Oracle Linux Security.
For guidelines about hardening an Oracle Linux system, see Chapter 5, Secure Deployment Checklist.