попробуйте вынести из location в server
server {
listen 5280 ssl;
server_name example.com;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
location /http-bind/ {
proxy_pass
10.10.10.10:5280/http-bind/;
proxy_buffering off;
tcp_nodelay on;
}
ssl on;
ssl_certificate example.com.crt;
ssl_certificate_key example.com.key;
ssl_session_cache shared:SSL:10m;
ssl_session_timeout 10m;
ssl_prefer_server_ciphers on;
ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-RC4-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:RC4-SHA;
}
