Cloned from upstream: https://pagure.io/freeipa/issue/6876
```KerberosSession.finalize_kerberos_acquisition()``` uses ```requests``` to interact with IPA. The ```request.get()``` call performs a HTTP GET over HTTPS but fails to use FreeIPA's private CA file.
Http code performed by this call doesn't use CA certificate/certificate store with full certificate chain of IPA server. So it might happen that in case that IPA is installed with externally signed CA certificate, the call can fail because of certificate validation and e.g. prevent session acquisition.
If it will fail for sure is not known - the use case was not discovered, but it is faster and safer to fix preemptively.
Created attachment 1285053 [details]
FreeIPA installation with external CA
Created attachment 1285054 [details]
screenshot for webUI
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.