server (Nginx)

Subdomain redirection:

 server {
     listen       80;
     server_name  ~^(?<mysubdomain>.+)\.example\.com$;
     return       301 http://example.com/$mysubdomain$request_uri;
 }

See also

• Nginx: nginx -t, nginx.conf, /etc/nginx/fastcgi.conf, Nginx Sample Configurations, server, ssl_certificate, redirect, return, rewrite, sendfile, request_uri, server_name, listen, /etc/nginx/snippets/, /etc/nginx/sites-enabled/default
• Web server: Nginx: /etc/nginx/nginx.conf, nginx -t, Nginx logs, Nginx change log, PHP, php-fpm, Let's encrypt, Nginx directives, Reverse Proxy, Configure HTTP redirection Nginx, Return, proxy_pass (Reverse proxy), ngx_http_rewrite_module, /etc/nginx/sites-enabled/, error.log, access.log, /nginx status, AIO