[X2Go-User] Help need with Linux-Linux Kerberos Authentication

[rubens.zanatta at grad.ufsc.br]

> Hi Rubens,
> 
> I must admit I'm not really knowledgeable about Kerberos, but since you
> say the authentication is succeeding, but you end up with a blank screen
> afterwards, it would be interesting to know which session type you were
> using (KDE, GNOME, XFCE, LXDE, ... or maybe Published Applications or a
> single application) - maybe your problem isn't related to Kerberos at
> all.  Also, what happens when you switch to a different session type?
> 
> And what is the output of "klist -fv"?  Is the ticket Proxyable,
> Forwardable, Initial?

Hello Stefan, thanks for the reply.

It's not exactly a blank screen, I took a screenshot of the error with
the --debug log besides it: 
https://drive.google.com/open?id=1cgBI3-ARfW4IDdnJeG-4K_iSAhjXuEoz 

I'm trying to log in to LXDE, and when I try XFCE, Published Apps and
even Terminal I get the same problem. Also, monitoring the syslog on the
X2Go server machine I see no X2Go activity during these attempts.
Anywhere else I should look that could help troubleshooting this? 

After I issue the initial ticket and unsuccessfully attempt an X2Go
login, "klist -f" outputs:

> Ticket cache: FILE:/tmp/krb5cc_1000
> Default principal: remoto at KERBEROS.COM
> 
> Valid starting       Expires              Service principal
> 23/01/2019 09:38:56  23/01/2019 19:38:56  krbtgt/KERBEROS.COM at KERBEROS.COM
> renew until 24/01/2019 09:38:53, Flags: FPRIA
> 23/01/2019 09:39:06  23/01/2019 19:38:56  host/newhost.com@
> renew until 24/01/2019 09:38:53, Flags: FPRAT
> 23/01/2019 09:39:06  23/01/2019 19:38:56  host/newhost.com at KERBEROS.COM
> renew until 24/01/2019 09:38:53, Flags: FPRAT

Again, any help is appreciated. 

Regards, 
Rubens
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