==OPTIONAL==
<u>Fedora</u>
Clear out DNS cache, do the following as '''root''' user:
{{Code|nscd -i hosts}}
<u>Ubuntu</u>{{Code|sudo /etc/init.d/dns-clean}}
In some cases you may need to use the full path for hda-change-dns
example: /usr/bin/hda-change-dns 208.67.222.222 208.67.220.220