# File dns/lib/symbiosis/config_files/tinydns.rb, line 47
      def ipv6
        ip = @domain.ipv6.first
        warn "\tUsing one IP (#{ip}) where the domain has more than one configured!" if @domain.ipv6.length > 1 and $VERBOSE
        raise ArgumentError, "No IPv6 addresses defined for this domain" if ip.nil?
        ip.to_string.gsub(":","")
      end