> You search for domain names using the DNS system itself, via the command line and nslookup or dig. You only go to a registrar once you've identified a name th

> You search for domain names using the DNS system itself, via the command line and nslookup or dig. You only go to a registrar once you've identified a name that is not in the DNS, to see if you can buy it. Why? There's WHOIS servers, that's how you know if a domain actually exists.