# Setting up matrix-ldap-registration-proxy (optional)
The playbook can install and configure [matrix-ldap-registration-proxy](https://gitlab.com/activism.international/matrix_ldap_registration_proxy) for you.
This proxy handles Matrix registration requests and forwards them to LDAP.
**Note**: This does support the full Matrix specification for registrations. It only provide a very coarse implementation of a basic password registration.
If you already use the [synapse external password provider via LDAP](configuring-playbook-ldap-auth.md) (that is, you have `matrix_synapse_ext_password_provider_ldap_enabled: true` and other options in your configuration) you can use the following values as configuration: