Overview#LDAP_STRONG_AUTH_REQUIRED is an LDAP Result Code that Indicates one of the following:
- In Bind Requests, the LDAP server accepts only strong authentication.
- In a client request, the client requested an operation such as delete that requires strong authentication.
- In an Unsolicited Notification of disconnection, the LDAP server discovers the security protecting the communication between the client and server has unexpectedly failed or been compromised.
- Microsoft Active Directory returns this when LDAP Signing is required and not using TLS
JNDI Clients might see Authentication Not Supported Exception