ansible/roles/nginx-reverse-proxy/templates/nginx/snippets/proxy-common-ssl.conf.j2

# {{ ansible_managed }}

# Listen for IPv4 and IPv6 with HTTP2
listen [::]:443 ssl http2;
listen 443 ssl http2;

# Hide NGINX version
server_tokens off;

# Reverse Proxy Adm
set_real_ip_from 10.128.0.0/16;
real_ip_header P-Real-Ip;

# SSL based on https://mozilla.github.io/server-side-tls/ssl-config-generator/
ssl on;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_session_tickets off;
ssl_protocols TLSv1.2;
ssl_ciphers "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256";
ssl_prefer_server_ciphers on;
add_header Strict-Transport-Security max-age=15768000;

# OCSP Stapling,
ssl_stapling on;
ssl_stapling_verify on;

# Use more secure ECDH curve
ssl_ecdh_curve secp521r1:secp384r1;

# Executer "cd /etc/ssl/certs; openssl dhparam -out dhparam.pem 4096" avant d'activer
ssl_dhparam /etc/ssl/certs/dhparam.pem;