[X2Go-User] x2go fails with tcsh

[Marlin Whitaker]

HI Frank,

I sent a message about something similar a short while ago:
http://lists.x2go.org/pipermail/x2go-user/2017-September/004539.html .
Unfortunately, I didn't receive any responses.

Thanks for pointing out the article from 2012; I was not aware of it.

In our particular case, I think the workaround was to remove the
bash-related dotfiles from the user's home directory and/or to modify the
PATH in $HOME/.bash* . But this is not an easily generalized solution. I
suppose we could have tried modifying the x2go run script in some way, but
I haven't gone down that road yet.

-- Marlin


On Sat, Oct 7, 2017 at 7:07 AM, Frank Steiner <fsteiner-mail1 at bio.ifi.lmu.de
> wrote:

> Hi,
>
> we just tried to x2go for the first time (client 4.0.5.2 server 4.0.1
> on SLED 12). It works fine for users with bash as login shell on the
> server side, but fails for those with tcsh.
>
> According to
> http://blog.x2go.org/index.php/2012/07/26/x2go-sessions-star
> tups-for-users-with-non-bash-like-shells-e-g-tcsh-and-alike/
> this should have been fixed a while ago, but it seems to have returned.
>
> I couldn't see any difference neither in the server log (debug level)
> nor in the output of "x2goclient --debug". The clients are identical until
> the line
>
> x2go-DEBUG-../src/onmainwindow.cpp:6014> Proxy wrote on stderr: "Session:
> Session started at 'Fri Oct  6 16:43:09 2017'.
>
> and then the tcsh instance exits with
> Warning: Protocol mismatch or no X authentication data.
>
> while the bash version continues with
> x2go-DEBUG-../src/onmainwindow.cpp:6014> Proxy wrote on stderr: "Info:
> Established X server connection.
>
> The server logs are identical until the line
> 2017-10-06T16:43:09.173981+02:00 knuth /usr/lib/x2go/x2gocreatesession[21667]:
> db_createsession called, session ID: fst-76-1507300986_stDmwm_dp24, cookie:
> 7b94de4d7f6bdbcda01a3dc547c42f66, client: xx:xx:xx:xx, pid: 21620,
> graphics port: 35760, sound port: 35761, file sharing port: 35762
>
> and then the tcsh instance  exits with
> 2017-10-06T16:43:15.007175+02:00 knuth sshd[21228]:
> pam_unix(sshd:session): session closed for user fst
> 2017-10-06T16:43:15.011998+02:00 knuth systemd-logind[9940]: Removed
> session 59.
>
>
> Is this problem known already? Sth. I could try to solve it? We wouldn't
> like to force all our users to switch away from their tcsh...
>
> cu,
> Frank
>
>
> --
> Dipl.-Inform. Frank Steiner   Web:  http://www.bio.ifi.lmu.de/~steiner/
> Lehrstuhl f. Bioinformatik    Mail: http://www.bio.ifi.lmu.de/~steiner/m/
> LMU, Amalienstr. 17           Phone: +49 89 2180-4049
> 80333 Muenchen, Germany       Fax:   +49 89 2180-99-4049
> * Rekursion kann man erst verstehen, wenn man Rekursion verstanden hat. *
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