I'm trying change the name server and get an error

I bought you a domain name in the zone .сom or .net and try to change the current name server on their own and get an error that the server(s) name was not found. Why?

For international domains .com, .net and etc. name servers must be registered in the whois database. To check your nameservers for registration, you can use the following URL: http://www.internic.net/whois.html. Enter your name server in the input field (eg ns1.gooddnsserver.com), check Nameserver option and click Submit.

If your name server is not registered (eg ns100.mydns.com), then register it refer to the current registrar of your domain (mydns.com). After registering the name servers you will be able to make changes.

If you have any problems with the registration of their name servers, then we can forward your domain to any of your IP address.