Modify Nginx configuration file

Example 1

 rewrite ^(.*)$ //$host$1 permanent;

Example 2

Applicable to port 80 and 443 configured in the same server {}

 if ($server_port = 80) {
 rewrite ^(.*)$ //$host$1 permanent;
 }

Example 3 Many domain names are bound to the site, and only one domain name is allowed to jump:

 set $redirect_https 1;
 if ($server_port = 80) {
 set $redirect_https "$ {redirect_https}2 ";
 }
 if ($http_host = 'www.exampledemo.com') {
 set $redirect_https "$ {redirect_https}3 ";
 }
 if ($http_host = 'exampledemo.com') {
 set $redirect_https "$ {redirect_https}3 ";
 }
 if ($redirect_https = "123") {
 rewrite ^(.*)$ //$host$1 permanent;
 }

Configuration example Configuration example:

 server {
 listen 80;
 server_name www.exampledemo.cn;
 rewrite ^ //$http_host$request_uri?  permanent;
 }
 server {
 listen 443;
 ssl on;
 ssl_certificate /etc/ssl/cacert.pem;
 ssl_certificate_key /etc/ssl/privkey.pem;
 server_name www.exampledemo.cn;
 server_tokens off;
 location / {
 fastcgi_param HTTPS on;
 fastcgi_param HTTP_SCHEME https;
 }
 }