How to change 1&1 name servers

If you use Website Builder:

1. select [ Websites & Applications | Website Builder | Settings ]
2. Assigned domain = [--- none selected ---]
3. click OK

To change DNS name servers:

1. select [Domains | your domain | DNS | Edit DNS settings]
2. Name Server=[My nameserver]
3. Primary nameserver="ns1.drupalvaluehosting.com"
4. Secondary Nameser=[My secondary namesever]
5. Secondary nameserver="ns2.drupalvaluehosting.com"
6. click OK