This optional parameter specifies the name or address of one
or more DNS Name Servers passed to Net::DNS. Nameservers with IPv6
addresses are supported if your system supports IPv6. Defaults to the
value of nameserver in resolv.conf. For more
information, see Section 3.117. <Resolver>.
Note
Current Net::DNS implementations appear
not to use multiple nameservers with the bgsend method Radiator uses. Only
the first server is used for the query.
# Look first on one server and then another if it times out:
Nameservers 203.63.154.100
Nameservers 203.63.154.101
