Minimum version of TLS services automatically changed
For improved security, FortiOS 6.4.13 uses the ssl-min-proto-version option (under config system global) to control the minimum SSL protocol version used in communication between FortiGate and third-party SSL and TLS services.
When you upgrade to FortiOS 6.4.13 and later, the default ssl-min-proto-version option is TLS v1.2. The following SSL and TLS services inherit global settings to use TLS v1.2 as the default. You can override these settings.
- Email server (
config system email-server) - Certificate (
config vpn certificate setting) - FortiSandbox (
config system fortisandbox) - FortiGuard (
config log fortiguard setting) - FortiAnalyzer (
config log fortianalyzer setting) - LDAP server (
config user ldap) - POP3 server (
config user pop3)