Is LDAP authentication and authorization in MySQL possible? What are the requirements (MySQL version, third-party software etc.)? How it's organized?
You can use mysql proxy for this , as it can execute shell commands , intercept and rewrite authentication . This should get you started .
You can use the auth_ldap plugin provided by Infoscope Hellas L.P. under GPL.
It can be downloaded from sourceforge at: http://sourceforge.net/projects/mysqlauthldap/
The plugin is still a Beta and works only for UNIX installations.