--- toc_folder_title: External User Authenticators and Directories toc_priority: 48 toc_title: Introduction --- # External User Authenticators and Directories {#external-authenticators} 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) [Original article](https://clickhouse.tech/docs/en/operations/external-authenticators/index/)