> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdia-admin/10.2-admin/secure-the-pentaho-system/big-data-security.md).

# Big data security

You can choose between two methods of implementing big data security. The security and protection of sensitive data is a major concern of data management today. To assist users in protecting their data, Pentaho provides two methods of implementing security for the Pentaho Server: Kerberos authentication and secure impersonation. Both methods are secure, and require a user to provide proof of identity to securely connect to a cluster. Also see [Pentaho and CDP security](/pdia-admin/10.2-admin/secure-the-pentaho-system/big-data-security/pentaho-and-cdp-security-big-date-security.md) if you are using a Knox security gateway along with Kerberos authentication for your Cloudera Data Platform (CDP) cluster.

For more information on implementing big data security, see the following topics: 

* [Kerberos authentication versus secure impersonation](/pdia-admin/10.2-admin/secure-the-pentaho-system/big-data-security/kerberos-authentication-versus-secure-impersonation.md)
* [Pentaho and CDP security](/pdia-admin/10.2-admin/secure-the-pentaho-system/big-data-security/pentaho-and-cdp-security-big-date-security.md)


---

# 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://docs.pentaho.com/pdia-admin/10.2-admin/secure-the-pentaho-system/big-data-security.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.