*     a race in fast follow-up.
 *
 *  4. If there's no existing connection, make a list of routes (which may require blocking DNS
 *     lookups) and attempt new connections to them. When failures occur, retries iterate the
 *     list of available routes.
 *
 * If the pool gains an eligible connection while DNS, TCP, or TLS work is in flight, this finder
 * will prefer pooled connections. Only pooled HTTP/2 connections are used for such de-duplication.

   * address for all hosts, regardless of the actual number of IP addresses reported by DNS.
   */
  fun newClient(): OkHttpClient {
    var client = testClient
    if (client == null) {
      client =
        initialClientBuilder()
          .dns(SINGLE_INET_ADDRESS_DNS) // Prevent unexpected fallback addresses.

ステップの初めは、**ドメイン名**を**取得すること**から始まるでしょう。その後、DNSサーバー（おそらく同じクラウドプロバイダー）に設定します。

おそらくクラウドサーバー（仮想マシン）かそれに類するものを手に入れ、<abbr title="変わらない">固定の</abbr> **パブリックIPアドレス**を持つことになるでしょう。

DNSサーバーでは、**取得したドメイン**をあなたのサーバーのパプリック**IPアドレス**に向けるレコード（「`Aレコード`」）を設定します。

これはおそらく、最初の1回だけあり、すべてをセットアップするときに行うでしょう。

/// tip

ドメイン名の話はHTTPSに関する話のはるか前にありますが、すべてがドメインとIPアドレスに依存するため、ここで言及する価値があります。

///

### DNS

では、実際のHTTPSの部分に注目してみよう。

   */
  open fun proxySelectEnd(
    call: Call,
    url: HttpUrl,
    proxies: List<@JvmSuppressWildcards Proxy>,
  ) {
  }

  /**
   * Invoked just prior to a DNS lookup. See [Dns.lookup].
   *
   * This can be invoked more than 1 time for a single [Call]. For example, if the response to the
   * [Call.request] is a redirect to a different host.
   *

There may be many routes for a single address. For example, a webserver that is hosted in multiple datacenters may yield multiple IP addresses in its DNS response.

	// and is 'true' when etcdConfig.PathPrefix is empty
	globalBucketFederation bool

	// Allocated DNS config wrapper over etcd client.
	globalDNSConfig dns.Store

	// GlobalKMS initialized KMS configuration
	GlobalKMS *kms.KMS

	// Common lock for various subsystems performing the leader tasks
	globalLeaderLock *sharedLock

	// Auto-Encryption, if enabled, turns any non-SSE-C request

 *
 */
public enum ResolverType {
    /**
     * Resolve using WINS server
     */
    RESOLVER_WINS,

    /**
     * NETBIOS broadcast
     */
    RESOLVER_BCAST,

    /**
     * DNS
     */
    RESOLVER_DNS,

    /**
     * LMHosts file lookup
     */
    RESOLVER_LMHOSTS

	public final fun setMaxRequestsPerHost (I)V
}

public abstract interface class okhttp3/Dns {
	public static final field Companion Lokhttp3/Dns$Companion;
	public static final field SYSTEM Lokhttp3/Dns;
	public abstract fun lookup (Ljava/lang/String;)Ljava/util/List;
}

public final class okhttp3/Dns$Companion {
}

public abstract class okhttp3/EventListener {

                }
                _src = _src.deferred;
                this.sid.decode(_src);

            }
        }
    }

    /**
     * LSA DNS domain information.
     */
    /**
     * LSA DNS domain information structure.
     */
    public static class LsarDnsDomainInfo extends NdrObject {

        /**
         * Default constructor for LsarDnsDomainInfo.
         */

import java.net.Inet6Address
import java.net.InetAddress
import okhttp3.internal.interleave

/**
 * Implementation of HappyEyeballs Sorting Addresses.
 *
 * The current implementation does not address any of:
 *  - Async DNS split by IP class
 *  - Stateful handling of connectivity results
 *  - The prioritisation of addresses
 *
 * https://datatracker.ietf.org/doc/html/rfc8305#section-4
 */