* 
     * 1) IP Address - If a dot-quad IP string is used with getByName (or used
     * to create an NbtAddress internal to this netbios package), no query is
     * sent on the wire and the only state this object has is it's IP address
     * (but that's enough to connect to a host using *SMBSERVER for CallingName).
     * 
     * 2) IP Address, NetBIOS name, nodeType, groupName - If however a

   * such as "::c000:201". The output does not include a Scope ID.
   *
   * @param ip {@link InetAddress} to be converted to an address string
   * @return {@code String} containing the text-formatted IP address
   * @since 10.0
   */
  public static String toAddrString(InetAddress ip) {
    checkNotNull(ip);
    if (ip instanceof Inet4Address) {
      // For IPv4, Java's formatting is good enough.

The DNS servers would tell the browser to use some specific **IP address**. That would be the public IP address used by your server, that you configured in the DNS servers.

<img src="/img/deployment/https/https01.svg">

### TLS Handshake Start

The browser would then communicate with that IP address on **port 443** (the HTTPS port).

你可能拥有一个云服务器（虚拟机）或类似的东西，并且它会有一个<abbr title="That isn't Change">固定</abbr> **公共IP地址**。

在 DNS 服务器中，你可以配置一条记录（“A 记录”）以将 **你的域名** 指向你服务器的公共 **IP 地址**。

这个操作一般只需要在最开始执行一次。

!!! tip
     域名这部分发生在 HTTPS 之前，由于这一切都依赖于域名和 IP 地址，所以先在这里提一下。

### DNS

现在让我们关注真正的 HTTPS 部分。

首先，浏览器将通过 **DNS 服务器** 查询**域名的IP** 是什么，在本例中为 `someapp.example.com`。

DNS 服务器会告诉浏览器使用某个特定的 **IP 地址**。 这将是你在 DNS 服务器中为你的服务器配置的公共 IP 地址。

<img src="/img/deployment/https/https01.svg">

      InetAddress ip = InetAddresses.forString(validIsatapAddress);
      assertTrue(InetAddresses.isIsatapAddress((Inet6Address) ip));
      assertEquals(
          "checking '" + validIsatapAddress + "'",
          ipv4,
          InetAddresses.getIsatapIPv4Address((Inet6Address) ip));
    }
    for (String nonIsatapAddress : nonIsatapAddresses) {
      InetAddress ip = InetAddresses.forString(nonIsatapAddress);

    C2_SVC_CIDR=$(KUBECONFIG="${C2_KUBECONFIG}" kubectl cluster-info dump | sed -n 's/^.*--service-cluster-ip-range=\([^"]*\).*$/\1/p' | head -n 1)
    docker exec "${C1_NODE}" ip route add "${C2_POD_CIDR}" via "${C2_DOCKER_IP}"
    docker exec "${C1_NODE}" ip route add "${C2_SVC_CIDR}" via "${C2_DOCKER_IP}"

	addrs, err := net.InterfaceAddrs()
	if err != nil {
		t.Fatalf("%s.  Unable to get IP addresses of this host.", err)
	}

	for _, addr := range addrs {
		var ip net.IP
		switch v := addr.(type) {
		case *net.IPNet:
			ip = v.IP
		case *net.IPAddr:
			ip = v.IP
		}

		if ip.To4() != nil {
			localIP4.Add(ip.String())
		}
	}

	// Filter ipList by IPs those do not start with '127.'.

  * In Istio sidecars, historically we had a lot of client-specific xDS. For example, putting the xDS-client's IP back into the xDS response. This makes efficient control plane implementation (most notably, caching), extremely challenging.
  * In practice, this largely means that references are fully qualified in the API. IP Addresses (generally) have a network associated with them, node names have a cluster associated with them, etc.

### DNS

Теперь давайте сфокусируемся на работе с HTTPS.

Всё начинается с того, что браузер спрашивает у **DNS-серверов**, какой **IP-адрес связан с доменом**, для примера возьмём домен `someapp.example.com`.

DNS-сервера присылают браузеру определённый **IP-адрес**, тот самый публичный IP-адрес вашего сервера, который вы указали в ресурсной "записи А" при настройке.

      InetAddress ip = InetAddresses.forString(validIsatapAddress);
      assertTrue(InetAddresses.isIsatapAddress((Inet6Address) ip));
      assertEquals(
          "checking '" + validIsatapAddress + "'",
          ipv4,
          InetAddresses.getIsatapIPv4Address((Inet6Address) ip));
    }
    for (String nonIsatapAddress : nonIsatapAddresses) {
      InetAddress ip = InetAddresses.forString(nonIsatapAddress);