https://community.developers.lseg.com/discussion/51261/could-not-create-ssl-tls-secure-channel-known-issue
"Could not create SSL/TLS secure channel" - Known Issue? - LSEG Developer Community
I'm getting the following message when sending a request from C# code, but not Postman: The request was aborted: Could not create SSL/TLS secure channel. I saw...
create sslsecure channel
https://www.digitalocean.com/community/tutorials/how-to-create-a-self-signed-ssl-certificate-for-nginx-in-ubuntu-16-04
Create Self-Signed SSL Certificate for Nginx Ubuntu | DigitalOcean
Generate self-signed SSL certificate for Nginx on Ubuntu 16.04. Step-by-step guide for HTTPS setup, certificate creation, and Nginx SSL configuration.
ssl certificatecreateselfsignednginx