昨天遇到一个问题，主机服务还没有转成https，但要转发给一个https地址，一直在报一个错

upstream server temporarily disabled while SSL handshaking to upstream, client: xxx.xxx.xxx.xxx, server: localhost

SSL_do_handshake() failed (SSL: error:1408F10B:SSL routines:ssl3_get_record:wrong version number) while SSL handshaking to upstream, client: xxx.xxx.xxx.xxx, server: localhost, request: "POST /a-path/ HTTP/1.1"

从log看应该是协议的问题，就开始找解决办法，最终解决问题，我把方法贴出来
 

location /web {
    proxy_pass https://static.xxxxx.com/h5/sdr/index.html;
    proxy_set_header Host $proxy_host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_ssl_session_reuse off;
    proxy_ssl_server_name on;
    proxy_ssl_name $proxy_host;
    proxy_ssl_protocols TLSv1.2;
}

关键是 proxy_ssl_protocols 和 proxy_ssl_session_reuse