CentOS7 nginx www redirect non-www

##### hosts #####
sudo nano /etc/hosts
    150.95.145.244 dev.easywaru.com
    150.95.145.244 www.dev.easywaru.com
sudo systemctl restart network

##### nginx setting #####
sudo nano /etc/nginx/sites-available/dev.easywaru.com.conf
    server {
        listen       80;
        server_name  www.dev.easywaru.com;
        return       301 https://dev.easywaru.com$request_uri;
    }
    server {
        listen       80;
        server_name  dev.easywaru.com
        ... other server setting ...
    }

##### hosts #####

sudo nano /etc/hosts

150.95.145.244 dev.easywaru.com

150.95.145.244 www.dev.easywaru.com

sudo systemctl restart network

##### nginx setting #####

sudo nano /etc/nginx/sites-available/dev.easywaru.com.conf

server {

listen 80;

server_name www.dev.easywaru.com;

return 301 https://dev.easywaru.com$request_uri;

}

server {

listen 80;

server_name dev.easywaru.com

... other server setting ...

}