# Page Not Found

The URL `vks/bat-dau-voi-vks/expose-mot-service-thong-qua-vlb-layer7/automatically-manage-certificates-in-vks-with-nginx-ingress-controller-cert-manager-and-lets-encr` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Automatically manage Certificates in VKS with Nginx Ingress Controller, Cert-Manager, and Let's Encr](https://docs.vngcloud.vn/vng-cloud-document/vks/network/working-with-alb/automatically-manage-certificates-in-vks-with-nginx-ingress-controller-cert-manager-and-lets-encr.md)
- [Preserve Source IP when using NLB and Nginx LoadBalancer Controller](https://docs.vngcloud.vn/vng-cloud-document/vks/network/working-with-nlb/preserve-source-ip-when-using-nlb-and-nginx-ingress-controller.md)
- [Expose a service through vLB Layer7 (ALB)](https://docs.vngcloud.vn/vng-cloud-document/vks/network/working-with-alb/expose-mot-service-thong-qua-vlb-layer7.md)
- [Integrate with Container Storage Interface (CSI)](https://docs.vngcloud.vn/vng-cloud-document/vks/storage/working-with-csi/integrate-with-container-storage-interface-csi.md)
- [Expose a service through vLB Layer4 (NLB)](https://docs.vngcloud.vn/vng-cloud-document/vks/network/working-with-nlb/expose-mot-service-thong-qua-vlb-layer4.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://docs.vngcloud.vn/vng-cloud-document/vks/network/working-with-alb/automatically-manage-certificates-in-vks-with-nginx-ingress-controller-cert-manager-and-lets-encr.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://docs.vngcloud.vn/vng-cloud-document/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://docs.vngcloud.vn/vng-cloud-document/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/vng-cloud-document/vks/network/working-with-alb/automatically-manage-certificates-in-vks-with-nginx-ingress-controller-cert-manager-and-lets-encr.md`).

You may also use `Accept: text/markdown` header for content negotiation.