### Worker Processes and Ports { #worker-processes-and-ports }

Remember from the docs [About HTTPS](https.md) that only one process can be listening on one combination of port and IP address in a server?

This is still true.

### Worker Process'ler ve Port'lar { #worker-processes-and-ports }

[HTTPS hakkındaki dokümanda](https.md) bir server'da aynı port ve IP adresi kombinasyonunu yalnızca tek bir process'in dinleyebileceğini hatırlıyor musunuz?

Bu hâlâ geçerli.

### Processus workers et ports { #worker-processes-and-ports }

Rappelez‑vous, d'après les documents [À propos de HTTPS](https.md), qu'un seul processus peut écouter une combinaison de port et d'adresse IP sur un serveur ?

C'est toujours vrai.

			return ep, fmt.Errorf("invalid URL endpoint format")
		}

		var port string
		host, port, err = net.SplitHostPort(u.Host)
		if err != nil {
			if !strings.Contains(err.Error(), "missing port in address") {
				return ep, fmt.Errorf("invalid URL endpoint format: %w", err)
			}

			host = u.Host
		} else {
			var p int
			p, err = strconv.Atoi(port)
			if err != nil {

**Un seul processus** sur le serveur peut écouter sur un **port** spécifique d'une **adresse IP** spécifique. Il pourrait y avoir d'autres processus écoutant sur d'autres ports de la même adresse IP, mais un seul pour chaque combinaison d'adresse IP et de port.

TLS (HTTPS) utilise par défaut le port spécifique `443`. C'est donc le port dont nous aurions besoin.

    address = ":9999"

[providers]
  [providers.file]
    filename = "routes.toml"
```

Dadurch wird Traefik angewiesen, Port 9999 abzuhören und eine andere Datei `routes.toml` zu verwenden.

/// tip | Tipp

Wir verwenden Port 9999 anstelle des Standard-HTTP-Ports 80, damit Sie ihn nicht mit Administratorrechten (`sudo`) ausführen müssen.

///

Erstellen Sie nun die andere Datei `routes.toml`:

services:
  mysql:
    image: 'mysql:latest'
    ports:
      - "127.0.0.1:9910:3306"
    environment:
      - MYSQL_DATABASE=gorm
      - MYSQL_USER=gorm
      - MYSQL_PASSWORD=gorm
      - MYSQL_RANDOM_ROOT_PASSWORD="yes"
  postgres:
    image: 'postgres:latest'
    ports:
      - "127.0.0.1:9920:5432"
    environment:
      - TZ=Asia/Shanghai
      - POSTGRES_DB=gorm
      - POSTGRES_USER=gorm
      - POSTGRES_PASSWORD=gorm

   * @param port a port number from [0..65535]
   * @return if parsing was successful, a populated HostAndPort object.
   * @throws IllegalArgumentException if {@code host} contains a port number, or {@code port} is out
   *     of range.
   */
  public static HostAndPort fromParts(String host, int port) {
    checkArgument(isValidPort(port), "Port out of range: %s", port);

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)

func TestNatsConnPlain(t *testing.T) {
	opts := natsserver.DefaultTestOptions
	opts.Port = 14222
	s := natsserver.RunServer(&opts)
	defer s.Shutdown()

	clientConfig := &NATSArgs{
		Enable: true,
		Address: xnet.Host{
			Name:      "localhost",
			Port:      (xnet.Port(opts.Port)),
			IsPortSet: true,
		},
		Subject: "test",
	}
	con, err := clientConfig.connectNats()
	if err != nil {