= Authentication =
[[TOC]]

The default Authentication system is an email address & password in the main Sahana database ({{{auth_user}}} table), however a variety of other Authentication systems can be used.

Web2Py documentation on possible methods are here:
* http://www.web2py.com/book/default/chapter/09#Authentication

== Facebook ==

The first step to be taken for enabling Facebook Login feature in Sahana is to create a Facebook app and get the App ID/Api Key. Now open the file Eden\web2py\applications\eden\models\000_config.py and uncomment the following two settings. Also enter the FB ID and Key in respective settings. 

[[Image(15.jpg)]]

settings.auth.facebook_id = <fb secret id>
settings.auth.facebook_secret = <fb secret key>

Also add the following property to activate the Facebook like button
settings.ui.social_buttons = True

After making the above modifications, we need to restart the server for the changes to take effect. Once the server restarts you'll see a button "Login with Facebook" visible on the home page

[[Image(1.jpg)]]
[[Image(2.jpg)]]

You can use any active Facebook account to login to Sahana.

== Google ==

== OpenID ==

== LDAP ==
It is possible to authenticate against an LDAP (Lightweight Directory Access Protocol) server:
* Microsoft Active Directory
* IBM's Lotus Notes Domino
* OpenLDAP