Sso gss_accept_sec_context

I cant aktivate SSO Login. After AD Windows & Zammad Konfiguration i have an error: gss_accept_sec_context() failed: Unspecified GSS failure. Minor code may provide more information (, No key table entry found for HTTP/…

Infos:

  • Used Zammad version: 4
  • Used Zammad installation type: (source)
  • Operating system: debian
  • Browser + version: Firefox, IE

Expected behavior:

Actual behavior:

Steps to reproduce the behavior:

The PoC page contains a section that covers your issue…
https://docs.zammad.org/en/latest/appendix/single-sign-on.html#errors-in-apache-logs

I have see this. But there is no Information about gss_acquire_cred()

I checked the configuration and also recreated it

And i use Windows 2012 AD Server