I made a db in my odoo instance that is accessed through xxx.mydomain.com (xxx is a subdomain), recently my customer told me that I need to show his website through his own domain hisdomain.com, I did configure things in my Nginx config file and I created a proxy_pass from hisdomain.com to xxx.mydomain.com, I did this to access to the correct db in odoo through hisdomain.com, I use ^% d$ in my config file, so now I have two ways To acces the xxx Database: hisdomain.com and xxx.mydomain.com, I guess that google going to think that hisdomain.com have duplicate information from xxx.mydomain.com and this will affects SEO.

How can I solve this?

This is my nginx config file:

server {

        listen 80;

        server_name xxx.mydomain.com;

        client_max_body_size 200m;

        proxy_read_timeout 720s;

        proxy_connect_timeout 720s;

        proxy_send_timeout 720s;

        # Add Headers for odoo proxy mode

        proxy_set_header X-Forwarded-Host $host;

        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_set_header X-Forwarded-Proto $scheme;

        proxy_set_header X-Real-IP $remote_addr;

        add_header Strict-Transport-Security max-age=15768000;

         # log

        access_log /var/log/nginx/odoo.xxx.access.log;

        error_log /var/log/nginx/odoo.xxx.error.log; 

        # Redirect requests to odoo backend server 
        location / {

          proxy_redirect off;

          proxy_pass http://odoo;

        }
        location /longpolling {

            proxy_pass http://odoochat;

        }

        location ~* /web/static/ {

             proxy_cache_valid 200 90m;

             proxy_buffering    on;

             expires 864000;

            proxy_pass http://odoo;

       }

       # common gzip

       gzip_types text/css text/less text/plain text/xml application/xml application/json application/javascript;

       gzip on;
}
server{

        listen 80;

        server_name  www.hisdomain.com;



         add_header Strict-Transport-Security max-age=15768000;

         # log

        access_log /var/log/nginx/odoo.xxx.access.log;

        error_log /var/log/nginx/odoo.xxx.error.log;



        location / {

          proxy_redirect off;

          proxy_pass http://xxx.mydomain.com; 
        }

}



server{

        listen 80;

        server_name hisdomain.com;

        # Strict Transport Security

      add_header Strict-Transport-Security max-age=15768000;

         # log

        access_log /var/log/nginx/odoo.xxx.access.log;

        error_log /var/log/nginx/odoo.xxx.error.log;



     # Redirect 301 to HTTPS

     return 301 http://www.$host$request_uri;
}