> For the complete documentation index, see [llms.txt](https://newdocs.keeper.io/kcm-linux-rpm-method/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://newdocs.keeper.io/kcm-linux-rpm-method/authentication.md).
# Authentication Options
Keeper Connection Manager supports multiple authentication mechanisms which can be enabled through installing additional packages.
### Advanced Linux Install Method
For Advanced Linux Install method, packages are available through the Keeper Connection Manager repository and automatically place the necessary Apache Guacamole extension within `/etc/guacamole/extensions` and any necessary dependencies (such as database drivers) within `/etc/guacamole/lib`.
The "[Test Installation](/kcm-linux-rpm-method/installation/advanced-linux-install/test-installation.md)" using the `user-mapping.xml` file is meant as a quick means of verifying the functionality of Guacamole but is not supported for production deployments.
{% hint style="warning" %}
Ensure that a production-ready authentication mechanism is configured prior to deploying Keeper Connection Manager.
{% endhint %}
All authentication methods packaged listed below are production-ready:
* [Authenticating users with LDAP](/kcm-linux-rpm-method/authentication/authenticating-users-with-ldap.md)
* [Authenticating users with SAML 2.0](/kcm-linux-rpm-method/authentication/authenticating-users-with-saml.md)
* [Authenticating users with OpenID Connect](/kcm-linux-rpm-method/authentication/authenticating-users-with-openid-connect.md)
* [Using Guacamole with a MySQL Database](/kcm-linux-rpm-method/authentication/using-keeper-connection-manager-with-a-mysql-database.md)
* [Using Guacamole with a PostgreSQL Database](/kcm-linux-rpm-method/authentication/using-keeper-connection-manager-with-a-postgresql-database.md)
* [Using Guacamole with a SQL Server Database](/kcm-linux-rpm-method/authentication/using-guacamole-with-a-sql-server-database.md)
Using a database like MySQL, PostgreSQL, or SQL Server enables additional features within Keeper Connection Manager, including connection sharing and a web-based administration interface. The LDAP authentication allows authentication to be provided through an LDAP directory such as OpenLDAP or Active Directory, and[ can be combined with a database](/kcm-linux-rpm-method/authentication/authenticating-users-with-ldap/using-ldap-with-a-database.md), thus avoiding the need to[ store connections within the LDAP directory using schema modifications](/kcm-linux-rpm-method/authentication/authenticating-users-with-ldap/storing-connection-data-within-ldap.md).
### Multi-factor Authentication
If you wish to enable multi-factor authentication in front of Keeper Connection Manager, you may do so with Duo or TOTP. Multi-factor authentication is supported in front of any of the above production-ready authentication mechanisms, however keep in mind that a database is always required for TOTP:
* [Using Duo for Multi-factor Authentication](/kcm-linux-rpm-method/authentication/using-duo-for-multi-factor-authentication.md)
* [Using TOTP for Multi-factor Authentication](/kcm-linux-rpm-method/authentication/using-totp-for-multi-factor-authentication.md)
Important Note: MFA cannot be activated if the SAML authentication method is already active.
---
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