www.subdomain.example.com not working despite trying various DNS entries and Godaddy forwarding options, can only get an nginx error

Question

I have a website that is online at the moment. For this website, I have a subdomain staging.example.com. I am using GoDaddy for domain hosting. My server is on an EC2 Linux instance with AWS. I have tested the following links:

• example.com works
• www.example.com works
• staging.example.com works
• www.staging.example.com NOT WORKING

In GoDaddy DNS settings page, I have tried to add these values:

• CNAME www.staging example.com
• CNAME www staging.example.com
• CNAME www.staging staging.example.com
• A www.staging 3.1.11.xxx

But for these trials, I got the NGINX welcoming page when opening www.staging.example.com

I have also tried the internal forwarding feature of GODADDY (Sorry it is in Vietnamese, but basically it forwards https://www.staging.example.com to staging.example.com

For this case I only got page not available error.

Could somebody help me to see why staging.example.com is not working for me?

Answer 1

You have to add that sub domain in your nginx virtual host in AWS EC2 to accept request from that sub domain Add new virtual host as "staging.example.com" under this directory /etc/nginx/sites-available/

server {
        listen 80;
        listen [::]:80;

        root /var/www/staging.example.com/html;
        index index.html index.htm index.nginx-debian.html;

        server_name staging.example.com www.staging.example.com;

        location / {
                try_files $uri $uri/ =404;
        }
}

Then enable new virtual host by using this command in terminal

ln -s /etc/nginx/sites-available/staging.example.com /etc/nginx/sites-enabled/

Restart nginx

systemctl restart nginx