LDAPS not matching certificate


  • Used Zammad version: 3.6.x
  • Used Zammad installation type: (source, package, docker-compose, …): source
  • Operating system: ubuntu 18.04
  • Browser + version: Mozilla 11

Expected behavior:

  • When setting ldaps, certificate should be fine

Actual behavior:

  • When setting ldap, i succeed in adding my user. But ldaps won’t work

Steps to reproduce the behavior:

  • I have a firewall rooting to zammad on port 636 so that my external ip on which zammad is installed can connect to my AD which is behind firewall

– seems to work fine, because when i try ldaps without ssl, it works. However as soon as i check ssl, it fails.

– I generated an ssl on my AD, exported it, then putted it on the zammad server. Doesn’t change the bahviour at all.