Nginx server_name is set to mydomain.com, so why is www.mydomain.com getting served too?

Posted by Lorenz Forvang on Server Fault See other posts from Server Fault or by Lorenz Forvang
Published on 2014-08-22T20:14:00Z Indexed on 2014/08/22 22:23 UTC
Read the original article Hit count: 249

Filed under:

dns

|

nginx

|

amazon-route53

I have my Nginx conf set up as follows:

server {
    listen 443 ssl;
    server_name mydomain.com;
    ...
}

When I load https://mydomain.com, the site loads fine. But when I load https://www.mydomain.com, the site loads as well. Why is this happening?

I set up the DNS records using Amazon Route 53 as:

A        mydomain.com        xxx.xxx.xxx.xxx (IP)
CNAME    www.mydomain.com    mydomain.com

So is a request to www.mydomain.com arriving at Nginx as a request to mydomain.com?

If so, how do I differentiate requests to www.mydomain.com and mydomain.com at my server?

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