I am trying to connect to a remote ldap server. After the authenticate(), the terminal asks me about a pin, password of pass phrase for security token 'NSS Certificate DB'. What is this? The LDAP server OS is CentOS. Django + django-auth-ldap In [1]: from django_auth_ldap.backend import LDAPBackend In [2]: ldap = LDAPBackend() In [3]: from django_auth_ldap.backend import LDAPBackend In [4]: ldap.authenticate('username', 'password') Please enter pin, password, or pass phrase for security token 'NSS Certificate DB': P.S. The connection is over SSL