httpbin            httpbin-65975d4c6f-jr69n                             10.244.1.10 ambient-worker        None                                TCP
istio-system       istiod-8c7b98fc4-mwjfp                               10.244.2.49 ambient-worker2       None                                TCP

	// CLI: -t mangle -A ISTIO_PRERT -s 169.254.7.127 -p tcp -m tcp --dport <PROBEPORT> -j ACCEPT
	//
	// DESC: If this is one of our node-probe ports and is from our SNAT-ed/"special" hostside IP, short-circuit out here
	iptablesBuilder.AppendRule(iptableslog.UndefinedCommand, ChainInpodPrerouting, iptablesconstants.MANGLE,
		"-s", hostProbeSNAT.String(),
		"-p", "tcp",
		"-m", "tcp",
		"-j", "ACCEPT",
	)

    )

    taskFaker.advanceUntil(520.ms)
    assertEvents(
      "plan 1 TCP connect failed",
    )

    taskFaker.advanceUntil(530.ms)
    assertEvents(
      "plan 2 TCP connect failed",
      "take plan 3",
      "plan 3 TCP connecting...",
    )

    taskFaker.advanceUntil(780.ms)
    assertEvents(
      "take plan 4",
      "plan 4 TCP connecting...",
    )

type httpListener struct {
	opts         TCPOptions
	tcpListeners []*net.TCPListener // underlying TCP listeners.
	acceptCh     chan acceptResult  // channel where all TCP listeners write accepted connection.
	ctx          context.Context
	ctxCanceler  context.CancelFunc
}

// start - starts separate goroutine for each TCP listener.  A valid new connection is passed to httpListener.acceptCh.
func (listener *httpListener) start() {

!!! tip "Tipp"
    Beachten Sie, dass die Verschlüsselung der Kommunikation auf der **TCP-Ebene** und nicht auf der HTTP-Ebene erfolgt.

### HTTPS-Request

Da Client und Server (sprich, der Browser und der TLS-Terminierungsproxy) nun über eine **verschlüsselte TCP-Verbindung** verfügen, können sie die **HTTP-Kommunikation** starten.

      app: {{ template "minio.name" . }}
      release: {{ .Release.Name }}
  ingress:
  - toPorts:
    - ports:
      - port: "{{ .Values.minioAPIPort }}"
        protocol: TCP
      - port: "{{ .Values.minioConsolePort }}"
        protocol: TCP
    {{- if not .Values.networkPolicy.allowExternal }}
    fromEndpoints:
    - matchLabels:
        {{ template "minio.name" . }}-client: "true"
    {{- end }}
  egress:

		UID:       "123",
	}
	podIP := netip.MustParseAddr("99.9.9.9")
	podIPs := []netip.Addr{podIP}

	fixture.ipsetDeps.On("addIP",
		"foo-v4",
		netip.MustParseAddr("99.9.9.9"),
		uint8(unix.IPPROTO_TCP),
		string(podMeta.UID),
		true,
	).Return(nil)

	err := netServer.AddPodToMesh(ctx, &corev1.Pod{ObjectMeta: podMeta}, podIPs, "fakenetns")
	assert.NoError(t, err)

      check(connectState == ConnectState.READY)
      events += "plan $id TCP connecting..."

      taskFaker.sleep(tcpConnectDelayNanos)

      if (yieldBeforeTcpConnectReturns) {
        taskFaker.yield()
      }

      return when {
        tcpConnectThrowable != null -> {
          events += "plan $id TCP connect failed"

                                  Valid Options: ALL_METRICS, REQUEST_COUNT, REQUEST_DURATION, REQUEST_SIZE, RESPONSE_SIZE, TCP_OPENED_CONNECTIONS, TCP_CLOSED_CONNECTIONS, TCP_SENT_BYTES, TCP_RECEIVED_BYTES, GRPC_REQUEST_MESSAGES, GRPC_RESPONSE_MESSAGES
                                enum:
                                - ALL_METRICS
                                - REQUEST_COUNT

* Шифрование соединения происходит **на уровне протокола TCP**.
    * Протокол TCP находится на один уровень **ниже протокола HTTP**.
    * Поэтому **проверка сертификатов и шифрование** происходит **до HTTP**.
* **TCP не знает о "доменах"**, но знает об IP-адресах.
    * Информация о **запрашиваемом домене** извлекается из запроса **на уровне HTTP**.