///

### DNS { #dns }

이제 실제 HTTPS 부분에 집중해 보겠습니다.

먼저 브라우저는 **DNS 서버**에 질의하여, 여기서는 `someapp.example.com`이라는 **도메인에 대한 IP**가 무엇인지 확인합니다.

DNS 서버는 브라우저에게 특정 **IP 주소**를 사용하라고 알려줍니다. 이는 DNS 서버에 설정해 둔, 서버가 사용하는 공개 IP 주소입니다.

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

### TLS 핸드셰이크 시작 { #tls-handshake-start }

그 다음 브라우저는 **포트 443**(HTTPS 포트)에서 해당 IP 주소와 통신합니다.

        return localhost.hostName;
    }

    /**
     * Determines the address of a host given it's host name. The name can be a NetBIOS name like
     * "freto" or an IP address like "192.168.1.15". It cannot be a DNS name;
     * the analygous {@link jcifs.smb1.UniAddress} or {@link java.net.InetAddress}
     * <code>getByName</code> methods can be used for that.
     *
     * @param host hostname to resolve

	case OperationTimedOut:
		apiErr = ErrRequestTimedout
	case BackendDown:
		apiErr = ErrBackendDown
	case ObjectNameTooLong:
		apiErr = ErrKeyTooLongError
	case dns.ErrInvalidBucketName:
		apiErr = ErrInvalidBucketName
	case dns.ErrBucketConflict:
		apiErr = ErrBucketAlreadyExists
	default:
		if strings.Contains(err.Error(), "request declared a Content-Length") {
			apiErr = ErrIncompleteBody
		} else {

		proto = getURLScheme(globalIsTLS)
	}
	u := &url.URL{
		Host:   r.Host,
		Path:   path.Join(SlashSeparator, bucket, object),
		Scheme: proto,
	}
	// If domain is set then we need to use bucket DNS style.
	for _, domain := range domains {
		if strings.HasPrefix(r.Host, bucket+"."+domain) {
			u.Path = path.Join(SlashSeparator, object)
			break
		}
	}
	return u.String()
}

			wr = true
		}

		return rd, wr
	}

	// If etcd, dns federation configured list buckets from etcd.
	var err error
	var buckets []BucketInfo
	if globalDNSConfig != nil && globalBucketFederation {
		dnsBuckets, err := globalDNSConfig.List()
		if err != nil && !IsErrIgnored(err,
			dns.ErrNoEntriesFound,
			dns.ErrDomainMissing) {
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)

noticeable.news
noticias.bo
notion.site
noto.ishikawa.jp
notodden.no
notogawa.shiga.jp
notteroy.no
nov.ru
nov.su
novara.it
novecore.site
now
now-dns.net
now-dns.org
now-dns.top
now.sh
nowaruda.pl
nowruz
nowtv
nozawaonsen.nagano.jp
nr
nra
nrw
ns.ca
nsn.us
nsupdate.info
nsw.au
nsw.edu.au
nt.au
nt.ca

- Fix the bug PIP's DNS is deleted if no DNS label service annotation isn't set. ([#87311](https://github.com/kubernetes/kubernetes/pull/87311), [@nilo19](https://github.com/nilo19)) [SIG Cloud Provider]

github.com/matttproud/golang_protobuf_extensions v1.0.4/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
github.com/miekg/dns v1.1.65 h1:0+tIPHzUW0GCge7IiK3guGP57VAw7hoPDfApjkMD1Fc=
github.com/miekg/dns v1.1.65/go.mod h1:Dzw9769uoKVaLuODMDZz9M6ynFU6Em65csPuoi8G0ck=
github.com/minio/cli v1.24.2 h1:J+fCUh9mhPLjN3Lj/YhklXvxj8mnyE/D6FpFduXJ2jg=

          listOf(InetAddress.getByName(socketHost))
        } else {
          call.eventListener.dnsStart(call, socketHost)

          val result = address.dns.lookup(socketHost)
          if (result.isEmpty()) {
            throw UnknownHostException("${address.dns} returned no addresses for $socketHost")
          }

          call.eventListener.dnsEnd(call, socketHost, result)
          result
        }

    )
  }

  @Test
  fun invalidHost() {
    // Note that 1234.1.1.1 is an invalid host in a URI, but URL isn't as strict.
    client =
      client
        .newBuilder()
        .dns(FakeDns())
        .build()
    assertFailsWith<UnknownHostException> {
      getResponse(
        Request
          .Builder()
          .url("http://1234.1.1.1/index.html".toHttpUrl())
          .build(),