.addSubjectAlternativeName("*.wildcard.com")
        .addSubjectAlternativeName("differentdns.com")
        .build()
    serverIps = Dns.SYSTEM.lookup(server.hostName)
    dns[server.hostName] = serverIps
    dns["san.com"] = serverIps
    dns["nonsan.com"] = serverIps
    dns["www.wildcard.com"] = serverIps
    dns["differentdns.com"] = listOf()
    val handshakeCertificates =
      HandshakeCertificates.Builder()

 * `RESTRICTED_TLS` is a secure configuration, intended to meet stricter compliance requirements.
 * `MODERN_TLS` is a secure configuration that connects to modern HTTPS servers.
 * `COMPATIBLE_TLS` is a secure configuration that connects to secure–but not current–HTTPS servers.
 * `CLEARTEXT` is an insecure configuration that is used for `http://` URLs.

If you are paying for 3 servers but you are using only a little bit of their RAM and CPU, you are probably **wasting money** 💸, and probably **wasting server electric power** 🌎, etc.

In that case, it could be better to have only 2 servers and use a higher percentage of their resources (CPU, memory, disk, network bandwidth, etc).

    `keepAliveDuration` but do not count against the pool-wide `maxIdleConnections` limit.

    This feature increases the client's traffic and the load on the server. Talking to your server's
    operators before adopting it.

 *  New in okhttp-android: `HttpLoggingInterceptor.androidLogging()` and
    `LoggingEventListener.androidLogging()` write HTTP calls or events to Logcat.

## 🌖 💽

/// warning

👉 🌅 🏧 ⚙️ 💼. 💭 🆓 🚶 ⚫️.

///

🔢, **FastAPI** 🔜 ✍ `server` 🗄 🔗 ⏮️ 📛 `root_path`.

✋️ 👆 💪 🚚 🎏 🎛 `servers`, 🖼 🚥 👆 💚 *🎏* 🩺 🎚 🔗 ⏮️ 🏗 & 🏭 🌐.

🚥 👆 🚶‍♀️ 🛃 📇 `servers` & 📤 `root_path` (↩️ 👆 🛠️ 👨‍❤‍👨 ⛅ 🗳), **FastAPI** 🔜 📩 "💽" ⏮️ 👉 `root_path` ▶️ 📇.

🖼:

```Python hl_lines="4-7"
{!../../docs_src/behind_a_proxy/tutorial003.py!}

		case errors.Is(err, errFirstDiskWait):
			// Fresh setup, wait for other servers to come up.
			logger.Info("Waiting for all other servers to be online to format the drives (elapses %s)\n", getElapsedTime())
		case errors.Is(err, errErasureReadQuorum):
			// no quorum available continue to wait for minimum number of servers.
			logger.Info("Waiting for a minimum of %d drives to come online (elapsed %s)\n",

Por padrão, o **FastAPI** criará um `server` no OpenAPI schema com o URL para o `root_path`.

Mas você também pode fornecer outros `servers` alternativos, por exemplo, se quiser que a *mesma* interface de documentação interaja com ambientes de staging e produção.

Se você passar uma lista personalizada de `servers` e houver um `root_path` (porque sua API está atrás de um proxy), o **FastAPI** inserirá um "server" com esse `root_path` no início da lista.

## Additional servers

/// warning

This is a more advanced use case. Feel free to skip it.

///

By default, **FastAPI** will create a `server` in the OpenAPI schema with the URL for the `root_path`.

    public List<Server> getServers() {
        if (servers == null) {
            servers = new ArrayList<>();
        }
        return servers;
    }

    @Override
    public MavenExecutionRequest setServers(List<Server> servers) {
        if (servers != null) {
            this.servers = new ArrayList<>(servers);
        } else {
            this.servers = null;
        }

        return this;
    }

### DNS

Now let's focus on all the actual HTTPS parts.

First, the browser would check with the **DNS servers** what is the **IP for the domain**, in this case, `someapp.example.com`.

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