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

Remember from the docs [About HTTPS](https.md){.internal-link target=_blank} that only one process can be listening on one combination of port and IP address in a server?

This is still true.

Luego crea un archivo `traefik.toml` con:

```TOML hl_lines="3"
[entryPoints]
  [entryPoints.http]
    address = ":9999"

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

Esto le dice a Traefik que escuche en el puerto 9999 y que use otro archivo `routes.toml`.

/// tip | Consejo

					}
					if i := strings.Index(wantName, "+"); i >= 0 {
						wantName = wantName[:i]
					}
				}
				if ok != isFuncSym || name != wantName {
					t.Errorf("fail at %s as function address: got %s, %v; expected %s, %v", test.input, name, ok, wantName, isFuncSym)
				}
			}
		})
	}
}

type operandTest struct {
	input, output string
}

type badOperandTest struct {

        override fun createSocket(
          host: InetAddress,
          port: Int,
        ): Socket? = null

        override fun createSocket(
          address: InetAddress,
          port: Int,
          localAddress: InetAddress,
          localPort: Int,
        ): Socket? = null

        override fun createSocket(
          host: String,
          port: Int,

	}
}

func TestUpdateColumnsSkipsAssociations(t *testing.T) {
	user := *GetUser("update_column_skips_association", Config{})
	DB.Create(&user)

	// Update a single field of the user and verify that the changed address is not stored.
	newAge := uint(100)
	user.Account.Number = "new_account_number"
	db := DB.Model(&user).UpdateColumns(User{Age: newAge})

	if db.RowsAffected != 1 {

      client.newCall(request).execute()
    }
  }

  /**
   * Make a request with two routes. The first route will time out because it's connecting to a
   * special address that never connects. The automatic retry will succeed.
   */
  @Test
  fun connectTimeoutsAttemptsAlternateRoute() {
    val proxySelector = RecordingProxySelector()

  The Free Software Foundation may publish revised and/or new versions of
the GNU Affero General Public License from time to time.  Such new versions
will be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.

  Each version is given a distinguishing version number.  If the
Program specifies that a certain numbered version of the GNU Affero General

				return
			}
			if intermediates == nil {
				intermediates = x509.NewCertPool()
			}
			intermediates.AddCert(cert)
		} else {
			peerCertificates = append(peerCertificates, cert)
		}
	}
	r.TLS.PeerCertificates = peerCertificates

	// Now, we have to check that the client has provided exactly one leaf

  /**
   * The HTTP <a
   * href="https://iabtechlab.com/wp-content/uploads/2019/06/VAST_4.2_final_june26.pdf">{@code
   * X-Device-IP}</a> header field name. Header used for VAST requests to provide the IP address of
   * the device on whose behalf the request is being made.
   *
   * @since 31.0
   */
  public static final String X_DEVICE_IP = "X-Device-IP";

  /**
   * The HTTP <a

    assertThat(parse("http://%5B%3A%3A1%5D/").host).isEqualTo("::1")
  }

  @Test
  fun hostIpv6AddressDifferentFormats() {
    // Multiple representations of the same address; see http://tools.ietf.org/html/rfc5952.
    val a3 = "2001:db8::1:0:0:1"
    assertThat(parse("http://[2001:db8:0:0:1:0:0:1]").host).isEqualTo(a3)
    assertThat(parse("http://[2001:0db8:0:0:1:0:0:1]").host).isEqualTo(a3)