DigtalOcean Nameserver

Go and log into DigitalOcean.
Go to Networking section.
Enter the domain and add it. Note: Please note that the URL used here is different.
Add A record where the hostname points to our droplet.
Add CNAME where the hostname is www and the alias is @.
Add CNAME where the hostname is * and the alias is @.

Setup Sub-Hosts

Open up our Nginx configuration file:
```
$ sudo vi /etc/nginx/nginx.conf
```

Append to the end of the http {} code block:

include /etc/nginx/sites-enabled/*.conf;
server_names_hash_bucket_size 64;

Create new server blocks.

sudo mkdir /etc/nginx/sites-available
sudo mkdir /etc/nginx/sites-enabled

nwapp.ca

Create the directory structure.
```
sudo mkdir -p /var/www/nwapp.ca/html
```

Grand permission to the regular users.

sudo chown -R $USER:$USER /var/www/nwapp.ca/html

Read access is permitted to generally all users.
```
sudo chmod -R 755 /var/www
```
Open sample file.
```
vi /var/www/nwapp.ca/html/index.html
```

Append file:

<html>
    <head>
        <title>Welcome to nwapp.ca!</title>
     </head>
     <body>
        <h1>Success! The nwapp.ca server block is working!</h1>
    </body>
</html>

Create the first server block file.

sudo vi /etc/nginx/sites-available/nwapp.ca.conf

Append file:

server {
    listen  80;

    server_name 165.22.234.35 nwapp.ca www.nwapp.ca;

    location / {
        root  /var/www/nwapp.ca/html;
        index  index.html index.htm;
        try_files $uri $uri/ =404;
    }

    error_page  500 502 503 504  /50x.html;
    location = /50x.html {
        root  /usr/share/nginx/html;
    }
}

Enable the new server block files.

sudo ln -s /etc/nginx/sites-available/nwapp.ca.conf /etc/nginx/sites-enabled/nwapp.ca.conf;

Confirm our server can restart.
```
sudo nginx -t;
```
Restart the server.
```
sudo systemctl restart nginx
```
Update your nginx config
```
sudo vi /etc/nginx/nginx.conf
```

The following can be deleted.

server {
        listen       80 default_server;
        listen       [::]:80 default_server;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        location / {
        }

        error_page 404 /404.html;
            location = /40x.html {
        }

        error_page 500 502 503 504 /50x.html;
            location = /50x.html {
        }
        ## enable php support ##
        location ~ \.php$ {
        root /usr/share/nginx/html;
        fastcgi_pass   127.0.0.1:9000;
        fastcgi_index  index.php;
        include        fastcgi_params;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        }
}

Confirm our server can restart.
```
sudo nginx -t;
```
Restart the server.
```
sudo systemctl restart nginx
```
Because we are running CentOS 7 we need to run the following because of this article and do not skip this:
```
sudo setsebool -P httpd_can_network_connect 1
```
Because of the security policies of the SELinux, we need to manually add the httpd_t to the list of permissive domains, run this command:
```
sudo semanage permissive -a httpd_t
```

(16) Also please run this command because of this article and do not skip this step:

    sudo chcon -Rt httpd_sys_content_t /var/www/nwapp.ca/build

(17) Finally in your browser, check to see that the links work.

http://nwapp.ca
http://london.nwapp.ca
http://toronto.nwapp.ca

nwapp.ws

Create the directory structure.
```
sudo mkdir -p /var/www/nwapp.ws/html
```

Grand permission to the regular users.

sudo chown -R $USER:$USER /var/www/nwapp.ws/html

Read access is permitted to generally all users.
```
sudo chmod -R 755 /var/www
```
Open sample file.
```
vi /var/www/nwapp.ws/html/index.html
```

Append file:

<html>
    <head>
        <title>Welcome to nwapp.ws!</title>
     </head>
     <body>
        <h1>Success! The nwapp.ws server block is working!</h1>
    </body>
</html>

Create the first server block file.

sudo vi /etc/nginx/sites-available/nwapp.ws.conf

Append file:

server {
    listen  80;

    server_name 165.22.234.35 nwapp.ws www.nwapp.ws;

    location / {
        root  /var/www/nwapp.ws/html;
        index  index.html index.htm;
        try_files $uri $uri/ =404;
    }

    error_page  500 502 503 504  /50x.html;
    location = /50x.html {
        root  /usr/share/nginx/html;
    }
}

Enable the new server block files.

sudo ln -s /etc/nginx/sites-available/nwapp.ws.conf /etc/nginx/sites-enabled/nwapp.ws.conf;

Confirm our server can restart.
```
sudo nginx -t;
```
Restart the server.
```
sudo systemctl restart nginx
```

(17) Finally in your browser, check to see that the links work.

http://nwapp.ws
http://london.nwapp.ws
http://toronto.nwapp.ws