By default MinIO uses the port 9000 to listen for incoming connections. If your platform blocks the port by default, you may need to enable access to the port.

### ufw

For hosts with ufw enabled (Debian based distros), you can use `ufw` command to allow traffic to specific ports. Use below command to allow access to port 9000

```sh
ufw allow 9000
```

                }
            }
        }

        httpClient = closeableHttpClient;
    }

    /**
     * Destroys the HTTP client.
     */
    @PreDestroy
    public void destroy() {
        if (httpClient != null) {
            try {
                httpClient.close();
            } catch (final IOException e) {

     */
    public HtmlTagBasedGenerator() {
        super();
    }

    /**
     * Destroys this thumbnail generator and releases any resources.
     * This implementation is empty as no cleanup is required.
     */
    @Override
    public void destroy() {
    }

    /**
     * Creates a thumbnail generation task for the specified document.
     *

     */
    @PostConstruct
    public void init() {
        fesenClient.addOnConnectListener(() -> createMapping("queue"));
    }

    /**
     * Destroys the service.
     */
    @PreDestroy
    public void destroy() {
        sessionCache.entrySet().stream().map(e -> e.getValue().waitingQueue).forEach(q -> q.forEach(urlQueue -> {
            try {
                insert(urlQueue);

        }
    }

    @Override
    public void destroy() throws DestroyFailedException {
        if (!destroyed) {
            boolean failedToDestroy = false;
            Exception destroyException = null;

            try {
                // Mark as destroyed first to prevent further operations
                destroyed = true;

                // Try to destroy master key if it implements Destroyable

                retryCount++;
            }
        }
    }

    /**
     * Destroys the client and closes connections.
     */
    @PreDestroy
    public void destroy() {
        if (client != null) {
            try {
                client.close();
            } catch (final OpenSearchException e) {

        }

        @Override
        public void destroy() {
            // Override to avoid null pointer issues with thread
            generating = false;
        }
    }

    @Override
    public void tearDown() throws Exception {
        if (thumbnailManager != null) {
            try {
                thumbnailManager.destroy();
            } catch (Exception e) {

        // Initialize without container
        emptyGenerator = new EmptyGenerator();

        // Test that destroy method can be called without error
        emptyGenerator.destroy();
        // Call destroy multiple times to ensure it's safe
        emptyGenerator.destroy();
        emptyGenerator.destroy();
    }

    public void test_isAvailable() {
        // Initialize without container

        assertTrue(generator.isGenerateCalled());
    }

    public void test_destroy() {
        // Test destroy method is called correctly
        generator = new TestThumbnailGenerator();

        assertFalse(generator.isDestroyCalled());
        generator.destroy();
        assertTrue(generator.isDestroyCalled());
    }

    public void test_expandPath() {
        // Test expandPath method

        // Test availability check
        assertTrue(thumbnailGenerator.isAvailable());
    }

    public void test_destroy() {
        // Test destroy method - should not throw exception
        thumbnailGenerator.destroy();
        // After destroy, generator should not be available
        assertFalse(thumbnailGenerator.isAvailable());
    }

    public void test_createTask_withValidParams() {