Is SSL configuration being used for RPC communication in 3.5.* versions? I am setting up a standalone spark cluster and I am a little bit confused in the security configuration.
In the SSL-configuration docs <https://spark.apache.org/docs/latest/security.html#ssl-configuration> it says that the SSL settings will be use for all the supported communication protocols. But this SSL thing is in the web UI section, which makes me think that SSL is only for the web UI. I know that there are spark.network.* configurations that can enable AES-based encryption for RPC connections, but I want to understand if having ssl and network settings overwrite one or the other? Or if they are meant to be used together for better protection? Thanks
