Changing your DNS provider
From Amahi Wiki
Amahi defaults to providing DNS forwarding through OpenDNS.
If you would like to change that to your router or your ISP or some other provider, you can issue this command, provided you have two IP addresses of the providers:
hda-change-dns FIRST_DNS_IP SECOND_DNS_IP
For instance, if you would like to use Google's Public DNS service, you would do:
hda-change-dns 8.8.8.8 8.8.4.4