# Setting up the LDAP authentication password provider module (optional, advanced)
The playbook can install and configure the [matrix-synapse-ldap3](https://github.com/matrix-org/matrix-synapse-ldap3) LDAP Auth password provider for you.
See that project's documentation to learn what it does and why it might be useful to you.
If you decide that you'd like to let this playbook install it for you, you need some configuration like this:
If you wish for users to **authenticate only against configured password providers** (like this one), **without consulting Synapse's local database**, feel free to disable it: