Basic Authentication is simple and most widely used authentication mechanism in HTTP based services or APIs. Client sends HTTP requests with the authorization HTTP header that contains the word Basic followed by a space and a base 64-encoded string username:password, for example, to authorize as username/password you can send the HTTP header as follows:Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ=

LDAP (Lightweight Directory Access Protocol) authentication is a method of validating the identity of a client or user by checking their credentials against a directory service. LDAP is commonly used for accessing and managing directory information services, such as user identities, within an organization.

NSX Advanced Load Balancer authenticates users using LDAP credentials provided through Basic Authentication.