> For the complete documentation index, see [llms.txt](https://docs.keeper.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.keeper.io/keeper-connection-manager/authentication.md).
# Authentication Options
Keeper Connection Manager supports multiple authentication mechanisms which can be enabled through installing additional packages.
### **Authentication Methods**
* [SAML 2.0](/keeper-connection-manager/authentication/authenticating-users-with-saml.md)
* [OpenID Connect](/keeper-connection-manager/authentication/authenticating-users-with-openid-connect.md)
* [LDAP](/keeper-connection-manager/authentication/authenticating-users-with-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.
* [TOTP](/keeper-connection-manager/authentication/using-totp-for-multi-factor-authentication.md)
* [Duo](/keeper-connection-manager/advanced-configuration/guacamole.properties/duo-two-factor-authentication-configuration-properties.md)
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