Nginx no-www to www and www to no-www

Question

I am using nginx on Rackspace cloud following a tutorial and having searched the net and so far can\'t get this sorted.

I want www.mysite.com to go to mysite.com as

Answer 1

Redirect non-www to www

For Single Domain :

server {
        server_name example.com;
        return 301 $scheme://www.example.com$request_uri;
}

For All Domains :

server {
        server_name "~^(?!www\.).*" ;
        return 301 $scheme://www.$host$request_uri;
}

Redirect www to non-www For Single Domain:

server {
        server_name www.example.com;
        return 301 $scheme://example.com$request_uri;
}

For All Domains :

server {
         server_name "~^www\.(.*)$" ;
         return 301 $scheme://$1$request_uri ;
}