import java.net.InetAddress;
import java.text.ParseException;
import javax.annotation.CheckForNull;

/**
 * A syntactically valid host specifier, suitable for use in a URI. This may be either a numeric IP
 * address in IPv4 or IPv6 notation, or a domain name.
 *
 * <p>Because this class is intended to represent host specifiers which can reasonably be used in a

# if the remotePilotAddress is an IP addr
apiVersion: v1
kind: Endpoints
metadata:
  {{- if .Values.pilot.enabled }}
  name: istiod{{- if .Values.revision }}-{{ .Values.revision}}{{- end }}-remote
  {{- else }}
  name: istiod{{- if .Values.revision }}-{{ .Values.revision}}{{- end }}
  {{- end }}
  namespace: {{ .Release.Namespace }}
subsets:
- addresses:
  - ip: {{ .Values.global.remotePilotAddress }}
  ports:

	t := time.Now().UTC()
	for ip := range c.domainIPs {
		bucketMsg, err := newCoreDNSMsg(ip, c.domainPort, defaultTTL, t)
		if err != nil {
			return err
		}
		for _, domainName := range c.domainNames {
			key := msg.Path(fmt.Sprintf("%s.%s", bucket, domainName), c.prefixPath)
			key = key + etcdPathSeparator + ip
			ctx, cancel := context.WithTimeout(context.Background(), defaultContextTimeout)

		"!", "-d", iptablesconstants.IPVersionSpecific, // ignore traffic to localhost ip, as this rule means to catch traffic to pod ip.
		"-p", iptablesconstants.TCP,
		"-i", "lo",
		"-j", "ACCEPT")

	// CLI: -A ISTIO_PRERT -p tcp -m tcp --dport <INPORT> -m mark ! --mark 0x539/0xfff -j TPROXY --on-port <INPORT> --on-ip 127.0.0.1 --tproxy-mark 0x111/0xfff
	//

			return nil, err
		}

		if net.ParseIP(host) != nil {
			// For IP only setups there is no need for DNS lookups.
			return baseDialCtx(ctx, "tcp", addr)
		}

		ips, err := lookupHost(ctx, host)
		if err != nil {
			return nil, err
		}

		for _, ip := range ips {
			conn, err = baseDialCtx(ctx, "tcp", net.JoinHostPort(ip, port))
			if err == nil {
				break
			}
		}

		return
	}

func (listener *httpListener) Addr() (addr net.Addr) {
	addr = listener.listeners[0].Addr()
	if len(listener.listeners) == 1 {
		return addr
	}

	tcpAddr := addr.(*net.TCPAddr)
	if ip := net.ParseIP("0.0.0.0"); ip != nil {
		tcpAddr.IP = ip
	}

	addr = tcpAddr
	return addr
}

      {{- else }}
      targetPort: {{ .Values.minioConsolePort }}
      {{- end }}
  {{- if .Values.consoleService.externalIPs }}
  externalIPs:
    {{- range $i , $ip := .Values.consoleService.externalIPs }}
    - {{ $ip }}
    {{- end }}
  {{- end }}
  selector:
    app: {{ template "minio.name" . }}

	return errors.New("not implemented on this platform")
}

func (m *realDeps) addIP(name string, ip netip.Addr, ipProto uint8, comment string, replace bool) error {
	return errors.New("not implemented on this platform")
}

func (m *realDeps) deleteIP(name string, ip netip.Addr, ipProto uint8) error {
	return errors.New("not implemented on this platform")
}

func (m *realDeps) flush(name string) error {

 *    [proxy selector][java.net.ProxySelector] is used. It may return multiple proxies to attempt.
 *  * **IP address:** whether connecting directly to an origin server or a proxy, opening a socket
 *    requires an IP address. The DNS server may return multiple IP addresses to attempt.
 *
 * Each route is a specific selection of these options.
 */
class Route(
  @get:JvmName("address") val address: Address,

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

### TLS Handshake の開始

ブラウザはIPアドレスと**ポート443**（HTTPSポート）で通信します。

通信の最初の部分は、クライアントとサーバー間の接続を確立し、使用する暗号鍵などを決めるだけです。

<img src="/img/deployment/https/https02.svg">

TLS接続を確立するためのクライアントとサーバー間のこのやりとりは、**TLSハンドシェイク**と呼ばれます。

### SNI拡張機能付きのTLS

サーバー内の**1つのプロセス**だけが、特定 の**IPアドレス**の特定の**ポート** で待ち受けることができます。