dns

var (
	// ErrNoDNSAvailable is reported when all servers failed to response
	ErrNoDNSAvailable = errors.New("no dns available")
	// ErrSuccess is designed for range hosts to break
	ErrSuccess = errors.New("success")
)

var DefaultResolver = &net.Resolver{
	PreferGo: true,
	Dial: func(ctx context.Context, _, _ string) (net.Conn, error) {
		if ip.IsIPv6Available {
			return IPv6Servers.DialContext(ctx, nil)
		}
		return IPv4Servers.DialContext(ctx, nil)
	},
}

var IPv4Servers = List{
	// contains filtered or unexported fields
}

var IPv6Servers = List{
	// contains filtered or unexported fields
}