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NginxでHTTPSリバースプロキシを構築する際の設定メモ

リバースプロキシ関連の共通設定

以下のファイルを作成する。

listen 443;

ssl on;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_session_tickets on;
ssl_protocols 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;
ssl_dhparam /etc/nginx/ssl/dhparam.pem;

proxy_set_header        Host    $host;
proxy_set_header        X-Real-IP       $remote_addr;
proxy_set_header        X-Forwarded-Host        $host;
proxy_set_header        X-Forwarded-Server      $host;
proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header        X-Forwarded-Proto https;
proxy_max_temp_file_size 10240m;
client_max_body_size 10240m;
proxy_redirect off;

add_header Strict-Transport-Security 'max-age=31536000';

server_tokens off;

上記ファイルは、リバースプロキシさせたいドメイン(FQDN)のserverディレクティブ内でincludeする。

server {
        include /etc/nginx/include/rproxy-ssl.conf;
        server_name example.local;
        ssl_certificate /etc/letsencrypt/live/example.local/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/example.local/privkey.pem;

        location / {
                proxy_pass http://10.12.34.56;
        }
}