Hello,
I made the fixes in the php code and I also made the fix you put on GitHub in the plugin.
I re-compiled the plugin, uninstalled the old auth-ldap.phar and put mine instead.
I'm back to php8.1
After re-installing the plugin in OSTicket, I had to redo the database modification because the identifiers in the bakend column changed (I was expecting it).
The update is done, it works correctly for the agents but still not for the users.
This time I have no error in the /var/log/apache2 logs.

I'm still looking for an error somewhere in the logs 🙂

I am still puzzled by this. For a couple years or so we've had a server running Ubuntu 18.0.4 with OSTicket 1.14.2 with the LDAP Authentication and Lookup plug-in version 0.6.2 which works fine. The plug-in is the same version that came with OSTicket 1.17.2 so I would think that matching the same settings should work fine, but I'm still getting the same error. Both servers are virtualized and running on the same Hyper-V server as is the domain controller it is authenticating to. They are all connected to the same virtual switch and the firewall is inactive on all three machines.

I've checked that all the PHP extensions that were installed on the old server were installed on the new one before installing OSTicket so as far as I can tell, the only difference is the version of Ubuntu, and the version of OSTicket. The only thing I can think of is perhaps I'm missing some dependency on the new server that was installed on the old one. Are there any Ubuntu packages that need to be installed for the LDAP plug-in to work correctly that are not required for OSTicket itself? Other than that, I'm kind of at a loss. I will continue reading through the various threads to see if I can find anything else that may help.

Thank you

    Thanks Kevin, it would be nice if it was that easy but php-ldap is installed. Before installing OSTicket on the new server I made sure that all the PHP extensions installed on the older server were also on the new one. I just double checked and it definitely is installed.

      roark

      I was just answering the question of:

      Are there any Ubuntu packages that need to be installed for the LDAP plug-in to work correctly that are not required for OSTicket itself?

      We do have a new release coming soon as well as new builds of the LDAP plugin, etc. so stay tuned!

      Cheers.

        I decided to test PHP 8.0 to see if it would help. The repository I used also installed PHP 8.2 by default so before I installed 8.0 I tried it with 8.2, but still experienced the same error.
        However, after installing 8.0.27 and setting Apache to use that version, we are able to authenticate and all seems to be working perfectly now.

          roark
          Not to be a total PITA for you -- but an you tell me -- did you just install 8.0.27 and all the same modules that you have for 8.1? To install 8.0.27 is it as easy as specifying 8.0.27?

            I followed the instructions here (I hope it's OK to paste a link here)...

            https://blog[dot]devops[dot]dev/downgrade-php8-1-to-php8-0-or-php7-4-on-ubuntu-22-04-2fab4a6a3be3

            When I first added the repository and ran apt-update it upgraded a lot of the 8.1 packages that were already there and also installed 8.2. I tested the plug-in with 8.2 and it still was not working for me so I followed the instructions to install 8.0 and 8.0.27 is what I ended up with. Now, my server has 8.0, 8.1 and 8.2 all installed but 8.0 has been set as the default, and it is working well for us now.

            sgriffin

            I'm revisiting this and would like to know if you can provide a little more information here. I believe the reason I could never replicate this is because I use OpenLDAP and this does not use msad schema. The issue here is solely related to msad schemas.

            Anyways, I would like to know what your Use TLS, Search User, Search Base, and LDAP Schema settings are set to. Please post a screenshot and censor any sensitive information.

            Cheers.

              whowe-ppd

              You can paste it here whilst censoring any sensitive info. For the Search User/Search Base I just really need to see the format (ie. cn=xxx,dc=xxx).

              Cheers.

                So I have the domain filled out and one of the main DCs set as our DNS server -- that same server is set as the LDAP server with port 389. Search user is:
                cn=helpdesk,ou=IT,ou=Users,dc=ourdomain,dc=dom

                Password is filled in for that user. Serach base is:

                ou=Users,dc=ourdomain,dc=dom with Microsoft Active Directory selected for the LDAP schema. I downgraded to 8.0 and it may be working -- but we really need support for 8.1 and higher. Thank you for your assistance.

                  whowe-ppd

                  Okay, that all seems fine. At this point the next step involves very extensive debugging which I currently don't have the time for as I'm focusing on other issues. I also currently don't have time to setup a full AD server at the moment.

                  If you want to unpack your plugin and debug to speed up this process I can provide some debug statements. This will however break user authentication with ldap completely and output debug statements to the browser so you may want to setup a separate test environment if you choose to debug.

                  Cheers.

                    whowe-ppd

                    Also, have you tried applying the patch I referenced above to see if that addresses the issue?

                    Cheers.

                      For Search User, set it to a username.

                      i.e. instead of cn=helpdesk,ou=IT,ou=Users,dc=ourdomain,dc=dom
                      set it to helpdesk or OURDOMAIN\helpdesk

                      We're in production so I downgraded to PHP8.0 and all works. If I get some time I'll spin up another instance where we can debug.

                        2 months later

                        whowe-ppd

                        I was finally able to revisit this with a legitimate MSAD server setup on Windows Server 2019. After extensive testing I can finally say without a doubt there should be no issues with User/Agent logins with PHP 8.1, v1.17.3, and latest build of LDAP plugin with correct LDAP settings configured.

                        If you still have issues check to see if you have more than one instance of the LDAP plugin enabled. If so, disable one of the instances and retest. Also, check to make sure your Search User and Search Base is correct. These two settings are very important. You can find the appropriate Search User string by running the following in a command prompt on the domain controller (this is assuming the administrator's username is Administrator):

                        dsquery user -name "Administrator"

                        This should give you something like:

                        "CN=Administrator,CN=Users,DC=domain,DC=com"

                        Cheers.

                          10 days later

                          We are having the same issue. I've diligently read through all options in this thread. We are running IIS on Server 2019, PHP 8.1.17, and OSticket v1,17,3. Agents can login fine using LDAP authentication. I can even create brand new agents and they can authenticate via LDAP exclusively. Users are not able to at all. I just get Access Denied. I even tried manually creating and registering a user with a password. Access Denied. Really frustrated. Dept of Homeland Security is demanding that we move to PHP 8.1.16 or greater so we don't have a choice on PHP version. Incidentally, I get the same results with 8.1.16 and 8.1.17. Any help appreciated!

                            eagletech

                            What is the format of your Search User and Search Base strings? What is the ost_user_account.backend value of the Users unable to login?

                            Cheers.