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使用Nginx和SNI时未知主机的回退配置?

sni nginx

0

Andre M · 技术社区 · 7 年前

有人能指出当我的Nginx服务器被要求提供一个它不知道的站点时,我如何配置默认主机响应吗?我试过:

server {
       listen 443 default_server;
       listen [::]:443 default_server;

       server_name _;

       return 444;
}

这只会导致所有其他站点导致“意外关闭连接”错误。

注意,我没有计划支持遗留https客户端(那些不知道SNI的客户端)。

我正在使用nginx1.14.0

1 回复 | 直到 7 年前

1

0

Andre M 7 年前

通过浏览web,答案似乎是您需要创建一个自签名证书,然后将其应用于默认主机。没有人会相信这一点,但考虑到他们最终使用的是一个未经处理的主机名,这可能并不重要?

我按照指示在 Digital Ocean

创建自签名证书
将“default”主机配置为在https配置中引用该主机(端口443)

生成dhparm文件(需要一段时间):

sudo openssl dhparam -out /etc/ssl/certs/dhparam.pem 2048

server {
       listen 443 default_server;
       listen [::]:443 default_server;

       include snippets/self-signed.conf;
       include snippets/ssl-params.conf;

       server_name _;

        root /var/www/html;

        # Add index.php to the list if you are using PHP
        index index.html index.htm index.nginx-debian.html;

        server_name _;

        location / {
                ssi on;
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ =404;
        }
}

ssl-signed.conf文件内容:

ssl_certificate /etc/ssl/certs/nginx-selfsigned.crt;
ssl_certificate_key /etc/ssl/private/nginx-selfsigned.key;

ssl-params.conf文件内容:

# from https://cipherli.st/

# and https://raymii.org/s/tutorials/Strong_SSL_Security_On_nginx.html

ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";
ssl_ecdh_curve secp384r1;
ssl_session_cache shared:SSL:10m;
ssl_session_tickets off;
ssl_stapling on;
ssl_stapling_verify on;
resolver 8.8.8.8 8.8.4.4 valid=300s;
resolver_timeout 5s;
# Disable preloading HSTS for now.  You can use the commented out header line that includes
# the "preload" directive if you understand the implications.
#add_header Strict-Transport-Security "max-age=63072000; includeSubdomains; preload";
add_header Strict-Transport-Security "max-age=63072000; includeSubdomains";
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;

ssl_dhparam /etc/ssl/certs/dhparam.pem;

注:以上是用nginx1.14.0测试的