Redirect from old domain to a new one keeping the link exact

Please fill in any relevant information that applies to you:

• Centmin Mod Version Installed:123.09beta01
• Nginx Version Installed: 1.11.8
• PHP Version Installed:7.0.14
• MariaDB MySQL Version Installed:10.1.20
• When was last time updated Centmin Mod code base ? :today

Hello

I am wondering how can i redirect a user that request old domain links to forward him to the new domain link but keep the exact link like:

user request:

---

Code:

http://forum.domain123.com/abc/123.php

to be:

Code:

http://www.newdomain.com/abc/123.php

Thanks

 

If the old domain was a subdomain do i have to create it first as a separate vhost and point an A record to it and do that change on that vhost config?

confused a bit...

Code:

http://forum.domain123.com/abc/123.php

to be:

Code:

http://www.newdomain.com/abc/123.php

 

I have already use the second server {} for the www redirect

How can i adjust it now?

Code:

server {
            listen   80;
            server_name newdomain.com;
            return 301 $scheme://www.newdomain.com$request_uri;
       }

server {
 
  server_name newdomain.com www.newdomain.com;

 

I was confused as you say added to the new vhost

My bad english damn sorry

So i will create another .conf file for http and another one for https and add there only this? :

Code:

server {
    listen 80;
    server_name forum.domain123.com;
    return 302 $scheme://www.newdomain.com$request_uri;
}