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example.com 重定向您太​​多次。ERR_TOO_MANY_REDIRECTS

tag-icon • tag-icon ubuntu nginx ssl ssl-certificate lets-encrypt
example.com 重定向您太​​多次。ERR_TOO_MANY_REDIRECTS

我正在尝试在 Ubuntu 16.04 上使用 Let's Encrypt 保护 Nginx。

example.conf 文件前获取 SSL 证书

server {
    server_name example.com www.example.com ;
    # Tell Nginx and Passenger where your app's 'public' directory is
    root /var/www/backup/mycode/public;
    # Turn on Passenger
    passenger_enabled on;
    rails_env development;
    passenger_ruby /usr/local/rvm/gems/ruby-2.5.6/wrappers/ruby;

}

http://example.com/是工作正常。

我尝试通过以下方式获取 SSL 证书

sudo certbot --nginx -d example.com -d www.example.com

结果是

Your existing certificate has been successfully renewed, and the new certificate
has been installed.

The new certificate covers the following domains: https://example.com and
https://www.example.com

example.conf 文件后获取 SSL 证书

server {
    server_name example.com www.example.com ;
    # Tell Nginx and Passenger where your app's 'public' directory is
    root /var/www/backup/example.com/public;
    # Turn on Passenger
    passenger_enabled on;
    rails_env development;
    passenger_ruby /usr/local/rvm/gems/ruby-2.5.6/wrappers/ruby;




    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}
server {
    if ($host = www.example.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    if ($host = example.com) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    server_name example.com www.example.com ;
    listen 80;
    return 404; # managed by Certbot

}

http://example.com/正在重定向至 https://example.com/太多次

example.com redirected you too many times.
ERR_TOO_MANY_REDIRECTS

  1. 为什么重定向次数太多？

  2. 第二个服务器块的用途是什么？

    server {
if ($host = www.example.com) {
    return 301 https://$host$request_uri;
} # managed by Certbot


if ($host = example.com) {
    return 301 https://$host$request_uri;
} # managed by Certbot


server_name example.com www.example.com ;
listen 80;
return 404; # managed by Certbot

 }

  3. 如何将所有重定向至https://www.example.com/？

编辑1

将 certibot 托管代码移至第二个服务器块已停止过多重定向问题。但我的网站又回到了HTTP而不是 https。

server {
            server_name example.com www.example.com ;
            # Tell Nginx and Passenger where your app's 'public' directory is
            root /var/www/backup/example.com/public;
            # Turn on Passenger
            passenger_enabled on;
            rails_env development;
            passenger_ruby /usr/local/rvm/gems/ruby-2.5.6/wrappers/ruby;

        }
        server {

            listen 443 ssl; # managed by Certbot
            ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # managed by Certbot
            ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; # managed by Certbot
            include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
            ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
            if ($host = www.example.com) {
                return 301 https://$host$request_uri;
            } # managed by Certbot


            if ($host = example.com) {
                return 301 https://$host$request_uri;
            } # managed by Certbot


            server_name example.com www.example.com ;
            listen 80;
            return 404; # managed by Certbot

        }

答案1

第二个服务器块的用途是什么？

监听 HTTP 并将 HTTP 请求重定向到 HTTPS。

为什么重定向次数太多？

不应该，除非网站本身不喜欢使用 HTTPS 进行调用，因此再次执行了一些重定向。Nginx 配置似乎没有问题。

How to make all redirects to https://www.example.com/?

改变

if ($host = example.com) {
    return 301 https://$host$request_uri;
}

到

if ($host = example.com) {
    return 301 https://www.$host$request_uri;
}

您还可以添加另一个重定向https://example.com到https://www.example.com（在第一个服务器块中，监听 HTTPS）；这将负责重定向开头不带“www.”的 HTTPS 请求。

答案2

1. 为什么重定向次数太多？

您的应用程序不知道请求是否通过 SSL 传入，将以下行添加到您的服务器块应该可以解决这个问题：

passenger_set_header X-Forwarded-Proto $scheme;

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