☰

如何使用nginx作為具有多個IP和SSL的反向代理？

tag-icon • tag-icon ssl https nginx reverse-proxy
如何使用nginx作為具有多個IP和SSL的反向代理？

我想設定具有多個網域和每個 IP 的 nginx 反向代理，以使用不同的 SSL 憑證。我運行 Ubuntu 作為安裝在 KVM/Qemu 虛擬機器上的作業系統。

據我了解 nginx，它應該能夠透過一個 IP 為一個網域（以及屬於它的子網域）提供服務。但我無法讓它運行...

這是我的 nginx 設定：

/etc/nginx/sites-enabled/my_first_domain

server {
  listen x.x.x.84:80;                                   # this is a public ip
  server_name firstdomain.com;

  access_log /var/log/nginx/access.log proxy;     # I made my own logformat
  error_log  /var/log/nginx/error.log;

  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header Client-IP $remote_addr;
  proxy_set_header X-Host $host;
  proxy_set_header Host $host;
  proxy_set_header X-Forwarded-For $remote_addr;

  location / {
    rewrite ^/(.*) https://firstdomain/$1;  # redirect to https
  }
}

server {
  listen x.x.x.84:443 ssl;                            # this is a public ip
  server_name firstdomain.com;

  ssl_certificate      /etc/nginx/ssl/combined.firstdomain.com.crt;
  ssl_certificate_key  /etc/nginx/ssl/wildcard.firstdomain.com.key;

  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header Client-IP $remote_addr;
  proxy_set_header X-Host $host;
  proxy_set_header Host $host;
  proxy_set_header X-Forwarded-For $remote_addr;

  access_log /var/log/nginx/access.log proxy;
  error_log  /var/log/nginx/error.log;

  location / {
    proxy_pass http://x.x.x.85;                       # this is a public ip, too 
    proxy_redirect off;
  }
}

我認為這個配置非常簡單。在連接埠 80 上的每個請求都應重定向到連接埠 443。

/etc/nginx/sites-enabled/另一個域

server {
  listen x.x.x.87:80;                                   # this is a public ip
  server_name anotherdomain.org;

  access_log /var/log/nginx/access.log proxy;     # I made my own logformat
  error_log  /var/log/nginx/error.log;

  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header Client-IP $remote_addr;
  proxy_set_header X-Host $host;
  proxy_set_header Host $host;
  proxy_set_header X-Forwarded-For $remote_addr;

  location / { 
    rewrite ^/(.*) https://anotherdomain.org/$1;  # redirect to https
  }   
}

server {
  listen x.x.x.87:443 ssl;                            # this is a public ip
  server_name anotherdomain.org;

  ssl_certificate      /etc/nginx/ssl/combined.anotherdomain.org.crt;
  ssl_certificate_key  /etc/nginx/ssl/wildcard.anotherdomain.org.key;

  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header Client-IP $remote_addr;
  proxy_set_header X-Host $host;
  proxy_set_header Host $host;
  proxy_set_header X-Forwarded-For $remote_addr;

  access_log /var/log/nginx/access.log proxy;
  error_log  /var/log/nginx/error.log;

  location / {
    proxy_pass http://x.x.x.89;                       # this is a public ip, too
    proxy_redirect off;
  }
}

我的 netstat -tulpen 片段：

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       User       Inode       PID/Program name
...
tcp        0      0 x.x.x.84:80           0.0.0.0:*               LISTEN      0          8724        1187/nginx      
tcp        0      0 x.x.x.87:80           0.0.0.0:*               LISTEN      0          8723        1187/nginx      
tcp        0      0 x.x.x.84:443          0.0.0.0:*               LISTEN      0          8726        1187/nginx      
tcp        0      0 x.x.x.87:443          0.0.0.0:*               LISTEN      0          8725        1187/nginx      
...

實際上，我認為這應該足以在同一台伺服器上使用 SSL 託管多個網域。但 nginx 為每個請求提供相同的憑證。結果是 SSL 錯誤。

還有另一個意想不到的行為。在調試時，我嘗試使用 telnet 作為客戶端來獲取網站。這個請求：

user@host:~$ telnet x.x.x.84 80
Trying x.x.x.84...
Connected to x.x.x.84.
Escape character is '^]'.
GET / HTTP/1.1
Host: firstdomain.com

屬於這個回覆：

HTTP/1.1 302 Moved Temporarily
...
Location: https://firstdomain.com/

嗯，沒關係...但是這個請求[相同的域（請參閱“主機：”-標頭），但 IP 現在不是]：

user@host:~$ telnet x.x.x.87 80
Trying x.x.x.87...
Connected to x.x.x.87.
Escape character is '^]'.
GET / HTTP/1.1
Host: firstdomain.com

....導致交付我所要求的網站。因此，儘管我將請求發送到了錯誤的 IP 並且沒有使用 SSL，但我還是透過代理商取得了該網站。這正是我想要阻止的！

謝謝你的想法！

答案1

您的第一個配置應該如下所示。

server {
  listen x.x.x.84:80;
  server_name firstdomain.com;

  access_log /var/log/nginx/access.log proxy;
  error_log  /var/log/nginx/error.log;

  return https://$server_name$request_uri;
}

server {
  listen x.x.x.84:443 ssl;
  server_name firstdomain.com;
  root ????;

  ssl_certificate      /etc/nginx/ssl/combined.firstdomain.com.crt;
  ssl_certificate_key  /etc/nginx/ssl/wildcard.firstdomain.com.key;

  access_log /var/log/nginx/access.log proxy;
  error_log  /var/log/nginx/error.log;

  location / {
    # Do not proxy everything to the backend, deliver static files
    # right away!
    try_files $uri @proxy;
  }

  location @proxy {
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header Client-IP $remote_addr;
    proxy_set_header X-Host $host;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_redirect off;
    # The backend MUST be SSL enabled as well!
    proxy_pass https://x.x.x.85;
  }
}

您的第二個配置應該如下所示。

server {
  listen x.x.x.87:80;
  server_name anotherdomain.org;

  access_log /var/log/nginx/access.log proxy;
  error_log  /var/log/nginx/error.log;

  return https://$server_name$request_uri;
}

server {
  listen x.x.x.87:443 ssl;
  server_name anotherdomain.org;
  root ????;

  ssl_certificate      /etc/nginx/ssl/combined.anotherdomain.org.crt;
  ssl_certificate_key  /etc/nginx/ssl/wildcard.anotherdomain.org.key;

  access_log /var/log/nginx/access.log proxy;
  error_log  /var/log/nginx/error.log;

  location / {
    # Do not proxy everything to the backend, deliver static files
    # right away!
    try_files $uri @proxy;
  }

  location @proxy {
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header Client-IP $remote_addr;
    proxy_set_header X-Host $host;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_redirect off;
    # The backend MUST be SSL enabled as well!
    proxy_pass https://x.x.x.85;
  }
}

請告訴我這是否有幫助，以便我們可以進一步重新定義配置。

相關內容