After a couple of days I have working setup of Win2008r2 + OpenFire 3.8.2 + AD + SSO + Spark 2.5.8(on Win7x64).
Regarding to the following topics, Spark 2.6.x has “TGS-REQ” problems with SSO:
I’ve tried to install all Spark versions from 2.6.0 to 188.8.131.5255.
The problem exists everywhere.
Mechanism level: Server not found in Kerberos database (7)
Any ideas about how to fix it, or when the developers will fix it?