if err != nil {
		panic(err)
	}
	ztunClient, err := net.DialUnix("unixpacket", nil, resolvedAddr)
	if err != nil {
		panic(err)
	}

	// send hello
	sendHello(ztunClient)

	return struct {
		ztunClient *net.UnixConn
		ztunServer *ztunnelServer
	}{ztunClient: ztunClient, ztunServer: ztun}
}