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zira-etc/letsencrypt/options-ssl-nginx.conf

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# This file contains important security parameters. If you modify this file
# manually, Certbot will be unable to automatically provide future security
# updates. Instead, Certbot will print and log an error message with a path to
# the up-to-date file that you will need to refer to when manually updating
# this file.
ssl_session_cache shared:le_nginx_SSL:1m;
ssl_session_cache shared:SSL:50m;
ssl_session_timeout 5m;
ssl_buffer_size 1400;
ssl_ecdh_curve secp521r1:secp384r1:prime256v1;
ssl_session_tickets off;
#ssl_dhparam /etc/nginx/ssl/dhparam.pem;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_prefer_server_ciphers on;
ssl_ciphers AES256+EECDH:AES256+EDH:!aNULL;
resolver 1.1.1.1 1.0.0.1 [2606:4700:4700::1111] [2606:4700:4700::1001];
resolver_timeout 5s;
ssl_stapling on;
ssl_stapling_verify on;
add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
add_header X-Frame-Options SAMEORIGIN;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
add_header X-Robots-Tag none;