[FreeNX-kNX] Shadow Session fails to attach

[Ling-Yan Lau]

Hi Chris,

Thanks for the info.

I’ve checked my configuration and I have the following options set in my node.conf file.

ENABLE_SESSION_SHADOWING_AUTHORIZATION=0
ENABLE_INTERACTIVE_SESSION_SHADOWING=1

Permissions on my nxshadowacl file are :  -rwxr-xr-x   1 root root   143 May 22 19:55 nxshadowacl

The contents of my nxshadowacl is :
#!/bin/sh
# Deny all sessions to be shadowed by anyone besides the same user.
# exit 1
# Allow all sessions to be shadowed by anyone.
exit 0

As I just have exit 0 in my nxshadowacl, shadowing should work between any two users.

When I shadow any session (same user as well other users) I get an error.  The error message is:
Error: Aborting session with 'Server is already active for display XXXX
        If this server is no longer running, remove /tmp/.XXXXX-lock
        and start again'.
Session: Aborting session at 'Tue May 28 10:15:57 2013'.
Session: Session aborted at 'Tue May 28 10:15:57 2013'.

I’m rather stumped as to what could be causing the problem.  Any other thoughts?

Any help much appreciated.

Len


From: freenx-knx-bounces at kde.org [mailto:freenx-knx-bounces at kde.org] On Behalf Of chris at ccburton.com
Sent: 22 May 2013 18:10
To: User Support for FreeNX Server and kNX Client
Subject: Re: [FreeNX-kNX] Shadow Session fails to attach


Ling-Yan Lau <ll220 at medschl.cam.ac.uk<mailto:ll220 at medschl.cam.ac.uk>>
Sent by: freenx-knx-bounces at kde.org<mailto:freenx-knx-bounces at kde.org>

22/05/2013 14:46

Please respond to User Support for FreeNX Server and kNX Client <freenx-knx at kde.org<mailto:freenx-knx at kde.org>>


Hi everyone,

I have a problem with my FreeNX server in that everything works find except I can’t get shadowing to work.

My setup is as follows:

[SNIP]

Error: Aborting session with 'Cannot establish any listening sockets - Make sure an X server isn't already running'.

I’m not sure what it is that I’ve missed or got wrong in my setup.  Can anyone help?

Many thanks,

Len

 [SNIP]

NX> 101 User: cscs
NX> 102 Password:
NX> 103 Welcome to: me-promis user: cscs
NX> 105 listsession --type="shadow"
NX> 127 Sessions list of user '.*' for reconnect:

Display Type             Session ID                       Options  Depth Screen         Status      Session Name
------- ---------------- -------------------------------- -------- ----- -------------- ----------- ------------------------------
2003    unix-gnome       1A756A55A57CDF54770F8B251B402EF2 --D--PSA    24 1914x1132      Running     me-promis (jd12345) (Shadowed)


What did you set in :-

        nxshadowacl

???

Try shadowing the same user and see if that works, else let me know . . .




ref    node.conf

# General shadowing / mirroring notes:
#
# By default shadowing is only allowed for the same user.
#
# If nxserver finds nxshadowacl binary, it asks it, for which users
# the permission is granted.















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