Re: [gdm-list] Consistent failed/successful gdm login

[Jukka Tuominen <jukka tuominen finndesign fi>]

Oops, forgot to mention that the OS used is Ubuntu 10.04 LTS with the repository's gdm version. Please, ask 
for more information if needed. 
Br, jukka

Sent from my iPhone

> On 5.10.2013, at 10.22, "Jukka Tuominen" <jukka tuominen finndesign fi> wrote:
>
>
> Hi all,
>
> I have a very strangely behaving client/server installation, where an
> identical client installation (virtual machine snapshot) on one host
> machine delivers successful gdm login every time, and on another (much
> slower) host machine it fails every time. A little background:
>
> I had a well-behaving Kerberos/OpenAFS/OpenLDAP installation, with
> integrated gdm login. However, I had to change the domain name for all the
> servers, user and host principals, LDAP database content, AFS databases
> etc. and try to keep them all in sync. A bit more complex task than you
> may wish for, really. Anyhow, I decided to remove LDAP from the equation
> since it was only used for the very basic metadata. libnss-afs package is
> now used to provide e.g. homedir paths on AFS. None of the user data gets
> written on the client side, which has basically a live-cd-type-of memory
> arrangements.
>
> As mentioned, I can't get the gdm-login working on all clients. If I login
> as a local unix user, I can log into AFS accounts without problems. Also
> 'id user' and 'getent passwd user' commands return correct metadata for
> AFS users. I set gdm on debug mode, and in both cases the login process
> goes quite far, until the failing instance returns an error:
> gdm-simple-slave[798]: WARNING: Failed to add user authorization: could
> not find user "userx" on system
> eventhough the authorization phase was once passed already.
>
> It could be a time-out of some kind possibly, but then again, the
> rejection happens within a few seconds only. It can be a misconfiguration
> somewhere, but one, identical client instance succeeds every time. Weird!
>
> On a visual level, it looks as if the login is going to succeed, but
> returns back to the login screen in the end. I found quite a many similar
> cases while searching the solution, but none was dealing with similar
> installation.
>
> Any idea what may be causing this and how to fix it? I have syslogs for
> both the successful and failed login, but they are quite big.
>
> br, jukka
>
>
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