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Redirecting https www domain to non-www domain with NGINX.

Posted on February 22, 2019

I have been looking but I am unable to find a solution. I have set up SSL certificates for my domain and the http traffic redirects to https. What I would like is https://www.example.com to redirect to https://example.com.

Any help would be appreciated.



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You could achieve that with a configuration similar to below. In this case the final destination is passed to a back-end server.

server {
	listen 80;
	server_name example.com;
	
	location / {
		return 301 https://example.com/$request_uri;
	}
	
	location ~ /.well-known/acme-challenge/ {
    		default_type "text/plain";
    		root /usr/share/nginx/html;

    		allow all;
	}	
}

server {
	listen 80;
	server_name www.example.com;
	
	location / {
		return 301 https://example.com/$request_uri;
	}
	
	location ~ /.well-known/acme-challenge/ {
    		default_type "text/plain";
    		root /usr/share/nginx/html;

    		allow all;
	}	
}

server {
	listen 443 ssl http2;
	server_name www.example.com;
	
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;

	ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
	ssl_prefer_server_ciphers on;
	ssl_ciphers "ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";
	ssl_ecdh_curve secp384r1;
	
	ssl_dhparam /etc/nginx/dhparam.pem;
	
	ssl_session_cache shared:SSL:10m;
	ssl_session_tickets off;
	
	ssl_stapling on;
	ssl_stapling_verify on;
	
	resolver 1.1.1.1 8.8.8.8 8.8.4.4 valid=300s;
	resolver_timeout 5s;
	
	add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
	add_header X-Frame-Options SAMEORIGIN;
	add_header X-Content-Type-Options nosniff;

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

server {
	listen 443 ssl http2;
	server_name example.com;
	
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;

	ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
	ssl_prefer_server_ciphers on;
	ssl_ciphers "ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";
	ssl_ecdh_curve secp384r1;
	
	ssl_dhparam /etc/nginx/dhparam.pem;
	
	ssl_session_cache shared:SSL:10m;
	ssl_session_tickets off;
	
	ssl_stapling on;
	ssl_stapling_verify on;
	
	resolver 1.1.1.1 8.8.8.8 8.8.4.4 valid=300s;
	resolver_timeout 5s;
	
	add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
	add_header X-Frame-Options SAMEORIGIN;
	add_header X-Content-Type-Options nosniff;
    
	location / {
		proxy_set_header        Host $host;
		proxy_set_header 		X-Real-IP $remote_addr;
		proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
		proxy_set_header        X-Forwarded-Proto $scheme;
		proxy_set_header 		Upgrade $http_upgrade;
        proxy_set_header 		Connection 'upgrade';
		
		proxy_pass http://xxx.xxx.xxx.xxx;
	}		
}

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