The name servers that you need to setup in your domain registrar account must be:
- ns1.fhio.pw
- ns2.fhio.pw
- ns3.fhio.pw
- ns4.fhio.pw
If your registrar does not require all fours name servers then NS1 and NS2 are enough.
Please be aware that DNS propagation may take up to 72 hours to be completed.