redis enable TLS

https://docs.microsoft.com/en-us/skype-sdk/sdn/articles/installing-security-certificates

https://stackexchange.github.io/StackExchange.Redis/

https://stackoverflow.com/questions/34166796/is-it-possible-to-enable-ssl-on-the-msopentech-redis-distribution

https://redislabs.com/blog/stunnel-secure-redis-ssl/

 https://stackoverflow.com/questions/4910447/one-machine-being-server-and-client-with-stunnel

https://support.huaweicloud.com/usermanual-dcs/dcs-zh-ug-180316001.html