How to configure Bind in Debian so that it gives one IP address for all requests?

Question

Domain Name System

This is necessary so that users connect their domains to my service by specifying my NS servers.
I looked at how it was done in a similar project: some time after specifying the domain on the site, this domain appears in the response to the DNS request.
And I want to make it simpler: so that for all requests there is one answer, prepared in advance.
I did not find convenient documentation on Bind :(

Answer 1

The config looks like this.
/etc/bind/named.conf.default-zones

zone "." {
    type master;
    file "/etc/bind/db.all";
};

/etc/bind/db.all

$TTL 3600
@ IN SOA ns1.megalanding.com. admin.megalanding.com. (
        2014042101 ; Serial
        21600 ; Refresh
        3600 ; Retry
        604800 ; Expire
        86400 ) ; Negative Cache TTL
    IN NS ns1.megalanding.com.
    IN NS ns2.megalanding.com.
*   IN A 109.120.177.239

Answer 2

Unfortunately, I can't give a definitive answer - I don't currently have a bind-a on which I can check and give a 100% correct answer, but you need to dig from here - en.wikipedia.org/wiki/Wildcard_DNS_record

Answer 3

bind so, most likely, is not able.
Able to dnsmasq, with option --address=/#/1.2.3.4
Or in config /etc/dnsmasq.conf :
address=/#/1.2.3.4