---
slug: /en/operations/external-authenticators/
sidebar_position: 48
sidebar_label: External User Authenticators and Directories
title: "External User Authenticators and Directories"
---

ClickHouse supports authenticating and managing users using external services.

The following external authenticators and directories are supported:

- [LDAP](./ldap.md#external-authenticators-ldap) [Authenticator](./ldap.md#ldap-external-authenticator) and [Directory](./ldap.md#ldap-external-user-directory)
- Kerberos [Authenticator](./kerberos.md#external-authenticators-kerberos)
- [SSL X.509 authentication](./ssl-x509.md#ssl-external-authentication)