Let Nginx redirect non-www to www and redirect http 80 to https 443¶

Suppose that you're the maintainer of www.example.com and the site is served by Nginx, you may redirect the followig sites to https://www.example.com (url with www subdomain and https schema):

• http://www.example.com (http + www)
• http://example.com (http + non-www)
• https://example.com (https + non-www)

Nginx configuration Example¶

server {
    listen 80;
    server_name _; 
    return 301 https://www.example.com$request_uri;
}

server {
    listen      443 ssl;
    server_name example.com;

    ssl_certificate /path/to/crt;
    ssl_certificate_key /path/to/key;

    return 301 https://www.example.com$request_uri;
}

server {
    listen       443 ssl;
    server_name  www.example.com;

    ssl_certificate /path/to/crt;
    ssl_certificate_key /path/to/key;

    location / {
        proxy_pass  http://127.0.0.1:8080;
    }
}

Notice:

• The first server directive redirect all http request.
• The second server directive redirect non-www request.
  • DO NOT omit ssl related configurations.
• The third server directive gives the detailed configuration of this site like location directives.