Oracle University has a wealth of free recorded webcasts for Oracle E-Business Suite. If you're looking for an overview of how to set up TLS 1.2, see:
Elke Phelps, Senior Principal Product Manager, provides details regarding the deployment requirements when configuring TLS 1.2 with Oracle E-Business Suite 12.2 and 12.1. Learn about key fundamentals for encrypting inbound, outbound and loopback connections in Oracle E-Business Suite, what prerequisite and configuration are required and what optional configurations are available. Also provided is a TLS 1.2 configuration checklist that is beneficial in reviewing key configuration and prerequisite requirements. Basic knowledge of Oracle E-Business Suite architecture and security is assumed. This material was presenterd at Oracle OpenWorld 2016.