Hi Alexander,
I've not done a lot with NiFi and LDAP, so I won't speculate on what the problem is, but I can share some information about debugging. If you are comfortable using a graphical debugger, I wrote an article recently about how to connect a debugger to NiFi: https://community.hortonworks.com/articles/106931/nifi-debugging-tutorial.html It covers how to connect an IDE's debugger to a running NiFi instance (IntelliJ but the steps should be similar for other debuggers) and also how to enable debug log output for your NiFi server. Hope this helps. If you are still stuck, feel free to post back with a follow up. Cheers, Kevin From: albaruthenia <[email protected]> Reply-To: <[email protected]> Date: Friday, July 14, 2017 at 09:48 To: <[email protected]> Subject: Debugging LDAP authentication errors I enabled and configured LDAP user authentication in our NiFi instance, and restarted it.. I also verified that the box the NiFi resides on is able to connect to the remote LDAP server using the ldapsearch tool. I created several user accounts in NiFi, whose identity matches their CN's in the Active Directory. When I try to login to NiFi, though using my AD credentials, the error says: "Unable to validate the supplied credentials. Please contact the system administrator." I wonder if what would be the best way to check where the authentication process fails? View this message in context: Debugging LDAP authentication errors Sent from the Apache NiFi Users List mailing list archive at Nabble.com.
