Hi, I have my nginx configured with client_certificate authentication: ssl_client_certificate /etc/nginx/ssl/cas.pem; ssl_verify_client optional; ssl_verify_depth 2; And is working fine, but I need to NOT send the CAs to the client during the handshake. I've seen http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_trusted_certificate in the documentation. So, I've changed it tby niegus - Nginx Mailing List - English