http://lifehack.skytips.xyz/wp/2017/01/03/post-406/
これの続き。
ついでに
https://www.ssllabs.com/ssltest/
での評価をA+にする。
DH交換鍵の作成
openssl dhparam 2048 -out /etc/ssl/private/dhparam.pem
nginxの設定
#SSL/TLS
ssl_certificate /etc/letsencrypt/live/***/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/***/privkey.pem;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_session_tickets on;
#DH鍵交換
ssl_dhparam /etc/ssl/private/dhparam.pem;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:ECDHE-RSA-DES-CBC3-SHA:ECDHE-ECDSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';
ssl_prefer_server_ciphers on;
add_header Strict-Transport-Security 'max-age=31536000; includeSubDomains;';
参考にしたサイト
https://tsuchikazu.net/lets-encrypt-nginx/
http://qiita.com/tanshio/items/e0acad2f29456dc30007
https://blog.kksg.net/posts/nginx-secure-ssl
https://gist.github.com/koudaiii/735ef14b83ee31ac0967
https://heartbeats.jp/hbblog/2012/06/nginx06.html
http://qiita.com/sak_2/items/ff835b669c0a7e110b09