A: No. Azure AD does not support the Lightweight Directory Access Protocol (LDAP) protocol or Secure LDAP directly. However, it's possible to enable Azure AD Domain Services (Azure AD DS) instance on your Azure AD tenant with properly configured network security groups through Azure Networking to achieve LDAP connectivity. For more information, see Configure secure LDAP for an Azure Active Directory …
Active Directory LDAP Field Mappings Jul 02, 2020 Tutorial - Configure LDAPS for Azure Active Directory To communicate with your Azure Active Directory Domain Services (Azure AD DS) managed domain, the Lightweight Directory Access Protocol (LDAP) is used. By default, the LDAP traffic isn't encrypted, which is a security concern for many environments. Active Directory Properties - LDAP Fields May 21, 2002
A set of unsafe default configurations for LDAP channel binding and LDAP signing exist on Active Directory domain controllers that let LDAP clients communicate with them without enforcing LDAP channel binding and LDAP signing. This can open Active Directory domain controllers to an elevation of privilege vulnerability.
Jan 19, 2015 Difference Between LDAP and AD | Compare the Difference Jun 23, 2011 LDAP and Active Directory authentication in RStudio
Ldapwiki: LDAP Query Examples for AD
AD Browser is a free Active Directory® browser by LDAPSoft. It is simple and easy to use tool designed to provide a read only access to the active directory. With AD Browser you can search for entries, view all available attributes and run SQL-LDAP Statments. AD browser provides both remote and local access to the Active Directory. Configuring Active Directory for LDAPS (LDAP over SSL) Oct 01, 2011 Authentication with LDAP against ActiveDirectory