## Ports {#ports}

### Linux {#linux}

As [announced](go1.23#linux) in the Go 1.23 release notes, Go 1.24 requires Linux
kernel version 3.2 or later.

### WebAssembly {#wasm}

					ObjectMeta: metav1.ObjectMeta{
						Name:      "productpage",
						Namespace: "default",
					},
					Spec: corev1.ServiceSpec{
						Selector: map[string]string{
							"app": "productpage",
						},
						Ports: []corev1.ServicePort{
							{
								Name:       "http",
								Port:       9080,
								TargetPort: intstr.FromInt32(9080),
							},
						},
					},
				},
				&corev1.Service{

-A ISTIO_PRERT ! -d 127.0.0.1/32 -p tcp ! --dport 15008 -m mark ! --mark 0x539/0xfff -j REDIRECT --to-ports 15006
-A ISTIO_OUTPUT ! -o lo -p udp -m mark ! --mark 0x539/0xfff -m udp --dport 53 -j REDIRECT --to-port 15053
-A ISTIO_OUTPUT ! -d 127.0.0.1/32 -p tcp --dport 53 -m mark ! --mark 0x539/0xfff -j REDIRECT --to-ports 15053
-A ISTIO_OUTPUT -p tcp -m mark --mark 0x111/0xfff -j ACCEPT
-A ISTIO_OUTPUT ! -d 127.0.0.1/32 -o lo -j ACCEPT

          ETCD_ADVERTISE_CLIENT_URLS: "http://0.0.0.0:2379"
        ports:
          - "2379:2379"
        options: >-
          --health-cmd "etcdctl endpoint health"
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
      openid:
        image: quay.io/minio/dex
        ports:
          - "5556:5556"
        env:
          DEX_LDAP_SERVER: "openldap:389"

services:
  mysql:
    image: 'mysql/mysql-server: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

  }

  public void testToString() {
    // With ports.
    assertEquals("foo:101", "" + HostAndPort.fromString("foo:101"));
    assertEquals(":102", HostAndPort.fromString(":102").toString());
    assertEquals("[1::2]:103", HostAndPort.fromParts("1::2", 103).toString());
    assertEquals("[::1]:104", HostAndPort.fromString("[::1]:104").toString());

    // Without ports.
    assertEquals("foo", "" + HostAndPort.fromString("foo"));

	ports := []string{}
	UserID := int64(1337)
	for _, container := range pod.Spec.Containers {
		for _, port := range container.Ports {
			var protocol string
			// Suppress /<protocol> for TCP, print it for everything else
			if port.Protocol != "TCP" {
				protocol = fmt.Sprintf("/%s", port.Protocol)
			}

-A ISTIO_PRERT ! -d 127.0.0.1/32 -p tcp ! --dport 15008 -m mark ! --mark 0x539/0xfff -j REDIRECT --to-ports 15006
-A ISTIO_OUTPUT ! -o lo -p udp -m mark ! --mark 0x539/0xfff -m udp --dport 53 -j REDIRECT --to-port 15053
-A ISTIO_OUTPUT ! -d 127.0.0.1/32 -p tcp --dport 53 -m mark ! --mark 0x539/0xfff -j REDIRECT --to-ports 15053
-A ISTIO_OUTPUT -p tcp -m mark --mark 0x111/0xfff -j ACCEPT
-A ISTIO_OUTPUT ! -d 127.0.0.1/32 -o lo -j ACCEPT

-A ISTIO_OUTPUT ! -d 127.0.0.1/32 -p tcp --dport 53 -m mark ! --mark 0x539/0xfff -j REDIRECT --to-ports 15053
-A ISTIO_OUTPUT -p tcp -m mark --mark 0x111/0xfff -j ACCEPT
-A ISTIO_OUTPUT ! -d 127.0.0.1/32 -o lo -j ACCEPT
-A ISTIO_OUTPUT ! -d 127.0.0.1/32 -p tcp -m mark ! --mark 0x539/0xfff -j REDIRECT --to-ports 15001
COMMIT
* raw
-N ISTIO_OUTPUT
-N ISTIO_PRERT
-A PREROUTING -j ISTIO_PRERT
-A OUTPUT -j ISTIO_OUTPUT

      name: hello
    spec:
      ports:
        -
          port: 80
          protocol: TCP
kind: List
metadata:
  resourceVersion: ""`
	udpService = `
kind: Service
metadata:
  name: hello
spec:
  ports:
    -
      protocol: udp`
	skippedService = `
kind: Service
metadata:
  name: hello
  namespace: istio-system
spec:
  ports:
    -
      name: http