Optionally authenticates only if a member of a given group in the directory.
-The person must have registered with Friendika using the normal registration
-procedures in order to have a Friendika user record, contact, and profile.
+The person must have registered with Friendica using the normal registration
+procedures in order to have a Friendica user record, contact, and profile.
Note when using with Windows Active Directory: you may need to set TLS_CACERT in your site
ldap.conf file to the signing cert for your LDAP server.