使用Django管理页面添加具有其他authentication_后端功能的用户

I'm using django_auth_ldap to authenticate users for a Django project against a large corporate ActiveDirectory system that's not organized in a useful way (and I don't have the ability to change it). As such, I have to add users individually so that I don't end up with any user who can authenticate against LDAP being able to sign into the system. It's possible to add LDAP users on the command line using to authenticate user