DNS Records Redirect www to non-www

Question

I'm using Namecheap Domains and Vultr Hosting.

I'm trying to redirect DNS www to non-www.

www.example.com to example.com

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I contacted Vultr and asked how to do this with their DNS Manager, they said they would not help as it is self-managed. So I contacted Namecheap, they said they would not help becuase they don't have access to Vultr's DNS Manager, would not tell me if the records I showed them are correct, and I would need to contact Vultr. So I am in an endless support loop.

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Vultr DNS Manager

I followed this answer on how to set up a CNAME to redirect to non-www.

Type   | Name | Data         | Seconds -------------------------------------- A      |      | ipv4 address | 300 AAAA   |      | ipv6 address | 300 CNAME  | .    | example.com  | 300 CNAME  | www  | example.com  | 300 

After waiting all night for it to propgate, the www can still be visited and does not redirect.

It does not allow me to make another A record, only CNAME. It says:

Unable to add record: A CNAME record is not allowed to coexist with any other data.  

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NGINX

I followed this guide and tried redirecting it with sites-available config. Http and Https work, but www does not redirect to non-www.

server {     # Redirect http to https     listen 80;     return 301 https://$host$request_uri; }  server {     # Redirect www to non-www     server_name www.example.com;     return 301 $scheme://example.com$request_uri; }  server {     listen 443 ssl default_server;      ssl on;     ssl_certificate /etc/nginx/ssl/cert_chain.crt;     ssl_certificate_key /etc/nginx/ssl/example_com.key;     ssl_protocols  TLSv1.1 TLSv1.2;      server_name example.com;     ... 

Answer 1

DNS cannot redirect your www site to non-www. The only purpose of DNS is to point both www and non-www to your server's IP address using A, AAAA or CNAME records (it makes little difference). The nginx configuration is responsible for performing the redirect from www to non-www.

Your second server block is intended to redirect from www to non-www, but currently only handles http connections (on port 80).

You can move the default server and use that to redirect everything to the intended domain name. For example:

ssl_certificate /etc/nginx/ssl/cert_chain.crt; ssl_certificate_key /etc/nginx/ssl/example_com.key;  server {     listen 80 default_server;     listen 443 ssl default_server;     return 301 https://example.com$request_uri; }  server {     listen 443 ssl;     server_name example.com;     ... } 

Assuming that you have a common certificate for both the www and non-www domain names, you can move the ssl_ directives into the outer block and allow them to be inherited into both server blocks (as shown above).

See this document for more.

Answer 2

You can direct www to non-www by adding a new server block to your nginx configuration file.

Step 1: Add the following server block to your nginx configuration file.

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

Step 2: Restart nginx.

sudo systemctl restart nginx