在 Nginx 中，如何重定向到另一個域，但還要保留路徑和子域？

因此，例如，我有一個域olddomain.com，並且newdomain.com

這是我希望請求重定向工作的方式：

sub.olddomain.com/hello/world -> sub.newdomain.com/hello/world olddomain.com/hello/world -> newdomain.com/hello/world

有很多子域，所以理想情況下我不想為每個子域創建一個規則。

這似乎是一個解決方案：

server {
 listen 80;
 server_name olddomain.com *.olddomain.com;
 rewrite ^(/)(.*)$ http://newdomain.com/$2 permanent;
}

但它不適用於子域，因為所有子域都會重定向到newdomain.com/path而不考慮子域。

您似乎正在尋找這樣的東西：

if ($http_host ~ (.*)\.olddomain\.com) {
   set $subdomain $1;
   rewrite (.*)$ http://$subdomain.newdomain.com$1 permanent;
}
rewrite ^(/)(.*)$ http://newdomain.com/$2 permanent;

這些是我的測試案例

$ curl -I -H "Host: test1.olddomain.com" nginx1.tst
HTTP/1.1 301 Moved Permanently
Server: nginx/1.4.4
Date: Thu, 08 May 2014 19:40:33 GMT
Content-Type: text/html
Content-Length: 184
Connection: keep-alive
Location: http://test1.newdomain.com/

$ curl -I -H "Host: test1.test2.olddomain.com" nginx1.tst
HTTP/1.1 301 Moved Permanently
Server: nginx/1.4.4
Date: Thu, 08 May 2014 19:40:38 GMT
Content-Type: text/html
Content-Length: 184
Connection: keep-alive
Location: http://test1.test2.newdomain.com/

$ curl -I -H "Host: test1.test2.olddomain.com" nginx1.tst/with-something/appended.html
HTTP/1.1 301 Moved Permanently
Server: nginx/1.4.4
Date: Thu, 08 May 2014 19:40:54 GMT
Content-Type: text/html
Content-Length: 184
Connection: keep-alive
Location: http://test1.test2.newdomain.com/with-something/appended.html

$ curl -I -H "Host: olddomain.com" nginx1.tst
HTTP/1.1 301 Moved Permanently
Server: nginx/1.4.4
Date: Thu, 08 May 2014 19:41:10 GMT
Content-Type: text/html
Content-Length: 184
Connection: keep-alive
Location: http://newdomain.com/

引用自：https://serverfault.com/questions/593979