Each registrar is different but they should all provide an area to change your nameservers from the registrars default.
If Little Hero Hosting has registered your domain for you then we will automatically update the nameservers for you if using our hosting.
If you are using Little Hero Hosting as your host please update the nameservers on a domain purchased elsewhere to:
ns1.littleherohosting.com
ns2.littleherohosting.com
To use another hosts nameservers please log in to your client area, click on my domains & find the relevant domain. To the right of the domain name click on the drop down arrow & click on manage nameservers. Once you have filled in the spaces provided click change nameservers and wait for the DNS to propagate.
Please be aware that propagation can take up to 72 hours but most times only takes 1-2 hours but this will depend on the hosts settings.