# Customizing the User RDN for LDAP Authentication

## Prerequisites

* Helm version 3 is installed on your system.
* The Kubernetes command line tool kubectl is configured and has access to the target installation.
* You know the name and namespace of your Connectware installation. See [Obtaining the name, namespace, and version of your Connectware installation](/2-0-3/documentation/connectware-on-kubernetes/connectware-helm-chart.md#obtaining-the-name-namespace-and-version-of-your-connectware-installation).
* The `values.yaml` file is available.
* [LDAP authentication configured](/2-0-3/documentation/connectware-on-kubernetes/ldap-authentication/configuring-ldap-authentication.md).

## Customizing the Search Filter for LDAP Authentication

If your LDAP directory uses a different property than “cn” as the username that is to be used, you can specify this property in the Helm value `userRdn` in the `global.authentication.ldap` context.

**Example**

{% code lineNumbers="true" %}

```yaml
global:
  authentication:
    ldap:
      enabled: true
      bindDn: CN=Users,DC=company,DC=tld
      url: ldap://my-dc.complany.tld:389
      userRdn: SN
```

{% endcode %}

**Related Links**

* [Single Sign-On with LDAP](/2-0-3/documentation/user-management/single-sign-on-sso/single-sign-on-with-ldap.md).
* [Configuring Connectware to use LDAP authentication](/2-0-3/documentation/connectware-on-kubernetes/ldap-authentication/configuring-ldap-authentication.md)


---

# Agent Instructions: 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:

```
GET https://docs.cybus.io/2-0-3/documentation/connectware-on-kubernetes/ldap-authentication/customizing-the-user-for-ldap-authentication.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.

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.