Missing documentation for setting up 2-way SSL/TLS for applications

Books:

• How To Configure Server Security, rev. 7579931, section 2.2.5. Setting up an SSL/TLS for Applications
• How to Configure Identity Management, rev. 7581061

Issue description:
There is no documentation for setting up 2-way SSL/TLS for applications. There is only a description for 1-way SSL/TLS in How To Configure Server Security.

Suggestions for improvement:

• Add description for setting up 2-way SSL/TLS for applications to How to Configure Identity Management (it is about using security domains, not only about security realm; it is about identity management).
• Add a link targeting the new section to How To Configure Server Security, section 2.2.5. Setting up an SSL/TLS for Applications.