*
   * @since 6.0
   */
  public boolean isUnderPublicSuffix() {
    return publicSuffixIndex() > 0;
  }

  /**
   * Indicates whether this domain name is composed of exactly one subdomain component followed by a
   * {@linkplain #isPublicSuffix() public suffix}. For example, returns {@code true} for {@code
   * google.com} {@code foo.co.uk}, and {@code myblog.blogspot.com}, but not for {@code

  * A pod can specify its own Hostname and Subdomain via annotations (<code>pod.beta.kubernetes.io/hostname, pod.beta.kubernetes.io/subdomain)</code>. If the Subdomain matches the name of a [headless service](http://kubernetes.io/docs/user-guide/services/#headless-services) in the same namespace, a DNS A record is also created for the pod’s FQDN. More

def test_middleware():
    client = TestClient(app, base_url="http://example.com")
    response = client.get("/")
    assert response.status_code == 200, response.text
    client = TestClient(app, base_url="http://subdomain.example.com")
    response = client.get("/")
    assert response.status_code == 200, response.text
    client = TestClient(app, base_url="http://invalidhost")
    response = client.get("/")

Aşağıdaki argümanlar desteklenir:

* `allowed_hosts` - Hostname olarak izin verilmesi gereken domain adlarının listesi. `*.example.com` gibi wildcard domain'ler subdomain eşleştirmesi için desteklenir. Herhangi bir hostname'e izin vermek için `allowed_hosts=["*"]` kullanın veya middleware'i hiç eklemeyin.

    }

    // Test with different from addresses
    @Test
    public void test_differentFromAddresses() {
        String[] fromAddresses = { "******@****.***", "******@****.***", "******@****.***", "test.user@subdomain.example.com" };

        for (String from : fromAddresses) {
            ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
                private static final long serialVersionUID = 1L;

    }

    // Test with different origin formats
    @Test
    public void test_doFilter_differentOrigins() throws Exception {
        String[] origins = { "http://localhost:8080", "https://example.com", "http://subdomain.example.com", "https://example.com:3000" };

        for (String origin : origins) {
            resetMocks(); // Reset for each test
            mockRequest.setHeader("Origin", origin);

* StatefulSet will now fill the `hostname` and `subdomain` fields if they're empty on existing Pods it owns. This allows it to self-correct the issue where StatefulSet Pod DNS entries disappear after upgrading to v1.7.x ([#48327](https://github.com/kubernetes/kubernetes/pull/48327)). ([#51199](https://...

- Allowed setting the `hostnameOverride` field in `PodSpec` to specify any RFC 1123 DNS subdomain as the pod's hostname. The `HostnameOverride` feature gate was introduced to control enablement of this functionality. ([#132558](https://github.com/kubernetes/kubernetes/pull/132558), [@HirazawaUi](https://github.com/HirazawaUi)) [SIG API Machinery,...

- `StatefulSet` names must be DNS labels, rather than subdomains. Any `StatefulSet`
  which took advantage of subdomain validation (by having dots in the name) can't
  possibly have worked, because we eventually set `pod.spec.hostname` from the `StatefulSetName`,

### Feature

- Added `k8s-short-name` and `k8s-long-name` format validation tags to enforce DNS label and DNS subdomain compliance. ([#133894](https://github.com/kubernetes/kubernetes/pull/133894), [@lalitc375](https://github.com/lalitc375))