Roundcube nginx config

server {
        listen 80;
        server_name example.com;
        return 301 https://example.com$request_uri;

        root /path/to/example.com/docroot;
        index index.php;

        access_log /var/log/nginx/example.com-access.log;
        error_log /var/log/nginx/example.com-error.log;

        location / {
                try_files $uri $uri/ /index.php?q=$uri&$args;
        }

        location ~ /.well-known {
                auth_basic off;
                allow all;
        }

        location ~ ^/(README.md|INSTALL|LICENSE|CHANGELOG|UPGRADING)$ {
                deny all;
        }

        location ~ ^/(config|temp|logs)/ {
                deny all;
        }

        location ~ /\. {
                deny all;
                access_log off;
                log_not_found off;
        }

        location ~ \.php$ {
                include snippets/fastcgi-php.conf;
                fastcgi_pass unix:/var/run/php5-fpm.sock;
                fastcgi_intercept_errors on;
                fastcgi_buffer_size 128k;
                fastcgi_buffers 256 4k;
                fastcgi_busy_buffers_size 256k;
                fastcgi_temp_file_write_size 256k;
        }
}

server {
        listen 443 ssl http2;
        server_name example.com;

        root /path/to/example.com/docroot;
        index index.php;

        access_log /var/log/nginx/example.com-access.log;
        error_log /var/log/nginx/example.com-error.log;

        location / {
                try_files $uri $uri/ /index.php?q=$uri&$args;
        }

        location ~ /.well-known {
                auth_basic off;
                allow all;
        }

        location ~ ^/(README.md|INSTALL|LICENSE|CHANGELOG|UPGRADING)$ {
                deny all;
        }

        location ~ ^/(config|temp|logs)/ {
                deny all;
        }

        location ~ /\. {
                deny all;
                access_log off;
                log_not_found off;
        }

        location ~ \.php$ {
                include snippets/fastcgi-php.conf;
                fastcgi_pass unix:/var/run/php5-fpm.sock;
                fastcgi_intercept_errors on;
                fastcgi_buffer_size 128k;
                fastcgi_buffers 256 4k;
                fastcgi_busy_buffers_size 256k;
                fastcgi_temp_file_write_size 256k;
        }

        ssl on;
        ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;
        ssl_trusted_certificate /etc/letsencrypt/live/example.com/chain.pem;

        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        ssl_prefer_server_ciphers on;

        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: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';

        # https://weakdh.org/
        # openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048
        ssl_dhparam /etc/nginx/ssl/dhparam.pem;

        # https://trac.nginx.org/nginx/ticket/235
        # nginx vs openssl segfault error, workaround is to be configured at the http{} block level.
        # ssl_session_cache shared:SSL:50m;
        ssl_session_timeout 60m;

        ssl_stapling on;
        ssl_stapling_verify on;
        resolver 8.8.8.8 8.8.4.4 valid=86400s;
        resolver_timeout 10s;

        add_header Strict-Transport-Security "max-age=31536000; preload";
}