DNS and Ping Name or service not known

[Daniel Stirnimann]

Hello Maurizio,

>         forwarders {
>                 194.126.200.5;
>                 81.221.250.11;
>                 81.221.252.11;
>          };

I can only guess what you want to achieve with this configuration but
these ip addresses are authoritative name servers and not recursive
resolvers. For example 194.126.200.5 is ns1.cyon.ch. Thus, these ip
addresses return REFUSED if you query them for a name they are not
authoritative for.

Daniel