Supported encryption protocols

The following tables show a complete list of supported encryption protocols for TLS1.2 based on the operating system.

RHEL 7.6
`ECDHE-RSA-AES256-GCM-SHA384`	`ECDHE-ECDSA-AES128-GCM-SHA256`
`ECDHE-ECDSA-AES256-GCM-SHA384`	`DH-RSA-AES128-GCM-SHA256`
`ECDHE-RSA-AES256-SHA384`	`ECDHE-RSA-AES128-SHA256`
`ECDHE-ECDSA-AES256-SHA384`	`ECDHE-ECDSA-AES128-SHA256`
`DHE-DSS-AES256-GCM-SHA384`	`DHE-DSS-AES128-GCM-SHA256`
`DHE-RSA-AES256-GCM-SHA384`	`DHE-RSA-AES128-GCM-SHA256`
`DHE-RSA-AES256-SHA256`	`DHE-RSA-AES128-SHA256`
`DHE-DSS-AES256-SHA256`	`DHE-DSS-AES128-SHA256`
`ECDH-RSA-AES256-GCM-SHA384`	`ECDH-RSA-AES128-GCM-SHA256`
`ECDH-ECDSA-AES256-GCM-SHA384`	`ECDH-ECDSA-AES128-GCM-SHA256`
`ECDH-RSA-AES256-SHA384`	`ECDH-RSA-AES128-SHA256`
`ECDH-ECDSA-AES256-SHA384`	`ECDH-ECDSA-AES128-SHA256`
`AES256-GCM-SHA384`	`AES128-GCM-SHA256`
`AES256-SHA256`	`AES128-SHA256`
`ECDHE-RSA-AES128-GCM-SHA256`

Ubuntu 16.04
`ECDHE-RSA-AES256-GCM-SHA384`	`DHE-DSS-AES128-GCM-SHA256`
`ECDHE-ECDSA-AES256-GCM-SHA384`	`DHE-RSA-AES128-GCM-SHA256`
`ECDHE-RSA-AES256-SHA384`	`DHE-RSA-AES128-SHA256`
`ECDHE-ECDSA-AES256-SHA384`	`DHE-DSS-AES128-SHA256`
`DHE-DSS-AES256-GCM-SHA384`	`ECDH-RSA-AES128-GCM-SHA256`
`DHE-RSA-AES256-GCM-SHA384`	`ECDH-ECDSA-AES128-GCM-SHA256`
`DHE-RSA-AES256-SHA256`	`ECDH-RSA-AES128-SHA256`
`DHE-DSS-AES256-SHA256`	`ECDH-ECDSA-AES128-SHA256`
`ECDH-RSA-AES256-GCM-SHA384`	`AES128-GCM-SHA256`
`ECDH-ECDSA-AES256-GCM-SHA384`	`AES128-SHA256`
`ECDH-RSA-AES256-SHA384`	`DH-RSA-AES128-GCM-SHA256`
`ECDH-ECDSA-AES256-SHA384`	`DH-DSS-AES128-GCM-SHA256`
`AES256-GCM-SHA384`	`DH-RSA-AES128-SHA256`
`AES256-SHA256`	`DH-DSS-AES128-SHA256`
`ECDHE-RSA-AES128-GCM-SHA256`	`DH-DSS-AES256-GCM-SHA384`
`ECDHE-ECDSA-AES128-GCM-SHA256`	`DH-RSA-AES256-GCM-SHA384`
`ECDHE-RSA-AES128-SHA256`	`DH-RSA-AES256-SHA256`
`ECDHE-ECDSA-AES128-SHA256`	`DH-DSS-AES256-SHA256`