> For the complete documentation index, see [llms.txt](https://dev-notes.vinguyen.blog/notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev-notes.vinguyen.blog/notes/deployment-and-operation/ngnix/nginx-504-gateway-timeout-error-using-nginx-as-proxy.md).

# Nginx - 504 Gateway Timeout error using Nginx as Proxy

**Nginx as Proxy** for  Web server, we can to try to fix the 504 Gateway Timeout error:

**Add these variables to `nginx.conf` file:**

```
  proxy_connect_timeout       600;
  proxy_send_timeout          600;
  proxy_read_timeout          600;
  send_timeout                600;
```

or add it to server block

```
server {
    location / {
        proxy_set_header   X-Real-IP $remote_addr;
        proxy_set_header   Host      $http_host;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_pass http://localhost:5000;
        proxy_connect_timeout       600;
        proxy_send_timeout          600;
        proxy_read_timeout          600;
        send_timeout                600;
    }
}
```

**Then restart nginx:**

```
service nginx reload
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://dev-notes.vinguyen.blog/notes/deployment-and-operation/ngnix/nginx-504-gateway-timeout-error-using-nginx-as-proxy.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.