Question

Exclude specific sub-domains from server where have wildcard server name

Hi, is it possible to have 3 server blocks with following server name? server block 1

server_name example.com www.example.com;

server block 2

server_name demo.example.com;

server block 3

server_name *.example.com;

reason i want to have like this, my main site will have server block 1, a demo will have server block 2, server block 3 will maintain the configuration for all other sub-domains that my client will create from my application.


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Yes, Nginx uses the wildcard on anything not specified. http://nginx.org/en/docs/http/server_names.html

@newbie

That’s definitely possible :-). Just make sure you have an A entry for the WildCard in your DNS Zone otherwise it won’t work properly.

For example:

A          @          DROPLET_IP
A          *          DROPLET_IP
A          www        DROPLET_IP
A          demo       DROPLET_IP

Alternatively, you can use a CNAME for www:

A          @          DROPLET_IP
A          *          DROPLET_IP
CNAME      www        example.com
A          demo       DROPLET_IP

Though for completeness, I’d recommend:

A          @          DROPLET_IP
A          *          DROPLET_IP
A          www        DROPLET_IP
A          demo       DROPLET_IP
A          www.demo   DROPLET_IP

or

A          @          DROPLET_IP
A          *          DROPLET_IP
CNAME      www        example.com
A          demo       DROPLET_IP
CNAME      www.demo   demo.example.com

… and changing:

server_name demo.example.com;

to

server_name demo.example.com www.demo.example.com;