[web] BIND

BIND is a DNS server. It allows a computer to respond to DNS queries. It doesn't prevent you from having to register your domain name with a registrar, but it does allow you to administer subdomains of that domain.

Okay so I guess it's not something I should be interested in since I don't plan on having subdomains. Thanks

In order to have DNS names like

something.somethingelse.example.com

It is not necessary for somethingelse.example.com to be a subdomain. It's sufficient to create an "A" record for something.somethingelse in the example.com domain.

This is how most companies do it. Unless you need differing administrative control, don't create subdomains. Even domains with thousands of hosts often just use a single zone file.

Another popular system is to use wildcard DNS. Suppose all hosts of the form something.wild.example.com, went to a set of sites under the same administrative control, it would be possible to set up a wildcard DNS to give out records for *.wild.example.com - they'd all have to be the same however (same IP address(es), MX etc).

Creating subdomains is a very bad idea and should be avoided. This almost always means that you don't need to run your own DNS (also a very bad idea).

As a webmaster, running your own DNS is pointless, yet it's tricky to set it up correctly, so avoid it if you can.

Mark