# Sources Sources allow you to connect passbook to an existing User directory. They can also be used for Social-Login, using external Providers like Facebook, Twitter, etc. ## Generic OAuth Source **All Integration-specific Sources are documented in the Integrations Section** This source allows users to enroll themselves with an External OAuth-based Identity Provider. The Generic Provider expects the Endpoint to return OpenID-Connect compatible Information. Vendor specific Implementations have their own OAuth Source. - Policies: Allow/Forbid Users from linking their Accounts with this Provider - Request Token URL: This field is used for OAuth v1 Implementations and will be provided by the Provider. - Authorization URL: This value will be provided by the Provider. - Access Token URL: This value will be provided by the Provider. - Profile URL: This URL is called by passbook to retrieve User information upon successful authentication. - Consumer key/Consumer secret: These values will be provided by the Provider. ## SAML Source This source allows passbook to act as a SAML Service Provider. Just like the SAML Provider, it supports signed Requests. Vendor specific documentation can be found in the Integrations Section ## LDAP Source This source allows you to import Users and Groups from an LDAP Server - Server URI: URI to your LDAP Server/Domain Controller - Bind CN: CN to bind as, this can also be a UPN in the format of `user@domain.tld` - Bind password: Password used during the bind process - Enable Start TLS: Enables StartTLS functionality. To use SSL instead, use port `636` - Base DN: Base DN used for all LDAP queries - Addition User DN: Prepended to Base DN for User-queries. - Addition Group DN: Prepended to Base DN for Group-queries. - User object filter: Consider Objects matching this filter to be Users. - Group object filter: Consider Objects matching this filter to be Groups. - User group membership field: Field which contains Groups of user. - Object uniqueness field: Field which contains a unique Identifier. - Sync groups: Enable/disable Group synchronization. Groups are synced in the background every 5 minutes. - Sync parent group: Optionally set this Group as parent Group for all synced Groups (allows you to, for example, import AD Groups under a root `imported-from-ad` group.) - Property mappings: Define which LDAP Properties map to which passbook Properties. The default set of Property Mappings is generated for Active Directory. See also [LDAP Property Mappings](property-mappings/index.md#ldap-property-mapping)