Use Transport Layer Security (TLS)
Configure your environment so that the CIS application servers are hosted behind a firewall and all communication through the firewall is over HTTPS.
For improved security, Oracle recommends that you configure the following security settings on the CIS application servers:
- Enable TLS 1.2 and higher.
- Disable SSL 2.0, SSL 3.0, TLS 1.0, and TLS 1.1.