These are the most basic settings you must configure. Without these, you won't be able to use Simple LDAP Login.
These settings give you finer control over how logins work.
Most users should leave these alone.
These settings give you control over which LDAP attributes are used for user creation.
Additional user data can be stored as user meta data. You can specify the LDAP attributes and the associated wordpress meta keys in the format <ldap_attribute_name>:<wordpress_meta_key>. Multiple attributes can be given on separate lines.
Example:phone:user_phone_numberadress:user_home_address
Here's a brief primer on how to effectively use and test Simple LDAP Login.
The most effective way to test logins is to use two browsers. In other words, keep the WordPress Dashboard open in Chrome, and use Firefox to try logging in. This will give you real time feedback on your settings and prevent you from inadvertently locking yourself out.
If you accidentally lock yourself out, the easiest way to get back in is to rename to something else and then refresh. WordPress will detect the change and disable Simple LDAP Login. You can then rename the folder back to its previous name.