How to make Net::LDAP logs verbose?

Looks like no one is willing to provide any hints to Net LDAP error while authenticating.

Let me ask another question: how can I

  • make Net::LDAP error messages verbose, and
  • where do I find those logs

My only idea ATM is that SSL certificate isn’t for some reason accepted, but I definitely need the logs to understand the cause of failure.

Thanks in advance.