TCPOptions{},
		)
		for _, err := range errs {
			if err != nil {
				if strings.Contains(err.Error(), "The requested address is not valid in its context") {
					// Ignore if IP is unbindable.
					continue nextTest
				}
				if strings.Contains(err.Error(), "bind: address already in use") {
					continue nextTest
				}
				t.Fatalf("Test %d: error: expected = <nil>, got = %v", i+1, err)
			}
		}

                    continue;
                }

                Enumeration<InetAddress> addresses = ni.getInetAddresses();
                while (addresses.hasMoreElements()) {
                    InetAddress addr = addresses.nextElement();

                    // Estimate link speed (would need platform-specific code for actual speed)

   * disallow IPv6 literals that don't contain these brackets.
   *
   * <p>Note that this parser identifies IPv6 literals solely based on the presence of a colon. To
   * perform actual validation of IP addresses, see the {@link InetAddresses#forString(String)}
   * method.
   *
   * @return {@code this}, to enable chaining of calls.
   * @throws IllegalArgumentException if bracketless IPv6 is detected.
   */

     *
     * @return string representation of the IP address
     */

    @Override
    public String getHostAddress() {
        return (this.address >>> 24 & 0xFF) + "." + (this.address >>> 16 & 0xFF) + "." + (this.address >>> 8 & 0xFF) + "."
                + (this.address >>> 0 & 0xFF);
    }

    @Override
    public int getNameType() {

```

#### 3.2.3 Generate a self-signed certificate

Create a file named `openssl.conf` with the content below. Set `IP.1` and/or `DNS.1` to point to the correct IP/DNS addresses:

```sh
[req]
distinguished_name = req_distinguished_name
x509_extensions = v3_req
prompt = no

[req_distinguished_name]
C = US
ST = VA
L = Somewhere
O = MyOrg
OU = MyOU

     * Retrieve an array of <code>InetAddress</code> created from a property
     * value containting a <code>delim</code> separated list of hostnames and/or
     * ipaddresses.
     *
     * @param key the property key to look up
     * @param delim the delimiter used to separate addresses in the property value
     * @param def the default array to return if the property is not found or cannot be parsed

            assertEquals(expectedServer, binding.getServer());
            assertEquals(expectedEndpoint, binding.getEndpoint());
        }

        @ParameterizedTest
        @DisplayName("Should handle IPv6 addresses correctly")
        @CsvSource({ "'ncacn_np:[::1][endpoint=\\pipe\\srvsvc]', ncacn_np, '[::1]', '\\pipe\\srvsvc'" })

In the DNS server(s) you would configure a record (an "`A record`") to point **your domain** to the public **IP address of your server**.

You would probably do this just once, the first time, when setting everything up.

/// tip

This Domain Name part is way before HTTPS, but as everything depends on the domain and the IP address, it's worth mentioning it here.

///

type esClientV7 struct {
	*elasticsearch7.Client
}

func newClientV7(args ElasticsearchArgs) (*esClientV7, error) {
	// Client options
	elasticConfig := elasticsearch7.Config{
		Addresses:  []string{args.URL.String()},
		Transport:  args.Transport,
		MaxRetries: 10,
	}
	// Set basic auth
	if args.Username != "" && args.Password != "" {
		elasticConfig.Username = args.Username

     * this client silently recovers from the following problems:
     *
     * * **Unreachable IP addresses.** If the URL's host has multiple IP addresses,
     *   failure to reach any individual IP address doesn't fail the overall request. This can
     *   increase availability of multi-homed services.
     *