I am using spring-ldap-core (version 2.3.3) and spring-security-ldap (version 5.4.2) plugin in my Sprint boot application. The application worked ok ... until yesterday. Yesterday, users receive error
javax.naming.authenticationexception ldap error code 49 - invalid credentials
After checking other applications written in other languages (php, pascal, C #), I came to the conclusion that the problem may be the LDAP protocol version.
Other applications enforce LDAP version 3.
Can anyone tell me how to enforce this version in spring-security???