i wanna use the x11-forwarding feature to connect me to an open session. is that possible? i have a linux-machine on which runs the jdownloader. the jdownloader is only as java-gui-only-tools available. so it runs always on a open x11-session on the linux-machine. i wanna configure this tool from everywhere. how can i make this? (if it is possible i wanna use x11-forwarding).
View 1 RepliesThe following message comes up when I boot up: Logging in user Warning: Cannot open ConsoleKit session: Unable to open session: Launch helper exited with unknown return code 0. When I press OK, the system completes the start up and everything looks normal. But when I try to connect to internet, I get the following message:
KNetworkManager cannot start because the installation is misconfigured. System DBUS policy does not allow it to provide user settings; contact your system administrator or distribution. KNetworkManager will not start automatically in future. If I reboot the system, I logg in successfully. So far the problem has appeared approximately upon every second time I boot up. Rebooting the system seems to take care of it.
Don't know what info is of interest. I'm using
Opensuse 11.2
KDE 4.4.2 (Factory)
After upgrade from 4.4.1 to 4.4.2 it worked fine for a week or so.
I do a clean install of slackware64 13.1 beta1 with KDE and switch default runlevel to 4 in /etc/inittab.
I try to login in kdm, I always come back to the login....
I try this with default runlevel 3 and an .xinitrc with "ck-launch-session startkde" .. works without problems, so I switch back to default runlevel 4, now i can login and only get the error "Cannot open ConsoleKit session: Unable to open session..."
Here are some logs
syslog
Code:
Code:
Here is my setup:
Machine A (fedora, gateway on remote network)
Machine B (fedora on local network)
Machine C (Vista on local network).
I want to connect to machine A from C and run graphical apps on it. I figured that installing a vnc client will be easier then X server (last time I tried X server on windows it did not end well). To ensure security, I vnc into a local linux box (machine B) and then ssh over to the remote box. When I ssh (with the -X param) into A from B, everything works great including the graphical apps. However, when I vnc into B from C and then ssh into A, I get the following message:
Warning: No Xauth data; using fake authentication data for X11 fowrard If I then try to run a graphical app I get cannot open display:
localhost:11.0
why does X forwarding work directly and not through vnc?
I have configured a squid proxy; it's running, but there was a problem: it does not provide service to client side.
The error was: "could not connect to session manager" "cannot open the network socket"
I also had ever tried all methods they mentioned, but my problem is still there. I am using a MAC OS X 10.6 ssh a remote redhat server. I hope to see X of redhat on my own MAC. Below is what I've done: 'MAC_ip' stands for my mac; 'redhat_ip' stands for redhat server.
1) ssh to redhat server
2) change to root
3) type command: DISPLAY=MAC_ip:0.0
4) type command: export
5) Back to MAC
6) change to root
7) type command: xhost +Redhat_ip
8) vim /etc/ssh_config, add X11Forwarding yes
9) Back to redhat, type: xclock
I got below message: Error: Can't open display: MAC_ip:0.0 I also tried some methods to login as others suggested:
[Code]....
Just installed Fedora 12 on a P4 IBM. Everything installed fine. Then, I rebooted, installed updates, and installed a few simple programs (emacs, ssh server). I rebooted since some kernel updates had been made. I can't login anymore. I get a brief message at GDM that says "unable to open session" after I enter my password. Root also doesn't work, but I figured out that root logins are disabled. I found something that recommended disabling selinux, so I reboot with selinux=0 parameter. That still didn't fix the problem, but did initiate selinux to re-label everything on the next boot.
My next thought was that maybe my password got corrupted, so I went into single usermode. I ran passwd justin, so I know that my password is correct. I still can't login via GDM or on a tty.
EDIT: I was also thinking I might need to uninstall something that I did; however, networking is disabled in single usermode, and if I init 3, then I get a login prompt that I can't open. Is there a way that I can enable root login? That might be a starting point to see if it's my user account or a general login problem.
My Fedora 12 box got that error after some updates on it.
I can login but it's prompting that error and everything will be a black space.
But still no good.
According to the log messages, the ConsoleKit session isn't initializing. I can't paste the logs here coz it's on another laptop.
I could think of just upgrading it to Fedora 13 but there's no way I can backup all of my files on it. Is it just safe to upgrade it?
Since doing an update (Kubuntu 10.04), this message appears when attempting to log in;
Quote:
Warning: cannot open ConsoleKit session: Unable to open session: the permission of the setuid helper is not correct.
After clicking ok on the above warning, the system logs in, but gives 2 error messages;
- removed sound devices
- KNetworkManager cannot start because the installation is misconfigured. System DBUS policy does not allow it to provide user settings. contact your system administrator or distribution. KNetworkManager will not start automatically in future.
when I type:
Code:
After the command has run (verified with atq) I cannot attach to screen using "screen -r" and ps shows screen is not running:
Code:
why the 'at' command can't start screen in the background for me to attach to later?
Noticed screen is actually returning "Must be connected to a terminal." to logs. Does 'at' not provide a terminal?
My server (CentOS 5.5) is a ldap client authenticate to LDAP server (Successfully authenticate) I use pam for ssh. I can ssh successfully with any users on system. But I cannot su - from ssh. It display the error: Could not open session. I look to log file and it shows: # tail -f /var/log/secure
View 5 Replies View RelatedAfter following a tutorial to install a pxe server for debian network install I can't log in my user session on gnome anymore
I got an error saying : /$home/.dmrc was ignored, can't save session and language the file must belong to the user and has persmission 644
I remember on my last session i got some icons on my home folder with a little lock icon on them i tried to remove them successfully using the command line but i still can't login. however i can successfully login with another user.
I coundn't log in fedora anymore. Everytime i try, i receive the report "unable to open session".
View 6 Replies View RelatedI have some typical issue while trying to connect to my root or other users from my terminal.
like su - asking for password and after that it displyed a message like $su -
Password: could not open session
I tried connect using ssh then I am getting the following $ssh root@localhost Last login: Sun Nov 1 14:13:45 2009 from localhost Connection to localhost closed.
Background: Before this happended, I was tryied modify sshd_config in /etc/ssh/ folder to allow passwords less than 2 words.
I am trying to install Fedora 14 or 15 into a 2008 R2 Hyper-V environment. I can successfully run the install and log into the system as a user. I need to install the integration components so the mouse works. However, I can't find a way to get a terminal window open so I can mount an .iso with the installers.
View 2 Replies View RelatedI am currently running Suse 11.3. I continue to get the following error when logging into the KDE login manager with my user account
"Warning: Cannot open ConsoleKit session: Unable to open session. The name
org.freedesktop.ConsoleKit was not provided by any .service files."
After acknowledging the error, it resets back to the login manager screen. If I login with root, I get the same message, but it continues on and logins into the session
I stream my local police station dispatch on the web using an icecast/darkice configuration [URL]. The downside of using this software is that once you initiate darkice, a terminal has to be open - the process does not run in the background.
I tried placing a monitor on my server (ouch, that hurt) and keeping darkice alive that way, but my mail server kicks the process. Now, I set the KeepAlive variable to something outrageous and keep an ssh session open on my desktop box to keep the stream going. Screen does not work as Postfix boots that as well.
keeping the process going indefinately?
To try another windows manager, I have to open a new display without a windows manager. The problem is that when I run
Code:
startx -- :1
kde runs automatically on it. How can I open a graphic session without a window manager?
On my ubuntu 9.10 pc i am not running a GUI.
Every thing is run from command line.
How do i start a second telnet session from command line.
Plus can i have 4 telnet session open and move from one to the next and back again.
I have installed virtualbox on opensuse 11.2 64bit.
When I go to open a machine it says
"Failed to open a session for the virtual machine Windows XP. The virtual machine 'Windows XP' has terminated unexpectedly during startup with exit code 1."
"
Result Code:
NS_ERROR_FAILURE (0x80004005)
Component:
Machine
Interface:
[Code].....
as root. Users of Ubuntu, Fedora or Mandriva should install the DKMS package first. This package keeps track of Linux kernel changes and recompiles the vboxdrv kernel module if necessary."
I'am using gentoo linux. After some system's updates VirtualBox stoped loading any virtual machine with error:
Code: Failed to open a session for the virtual machine. Virtual machine has terminated unexpectedly during startup.
Details:
Result Code: NS_ERROR_FAILURE (0x80004005)
Component: Machine
Interface: IMachine {99404f50-dd10-40d3-889b-dd2f79f1e95e} Kernel log
Code:
So, i've rebuilded all VirtualBox dependencies with safe flags, then i've recompiled most of the sys-* packages also with safe flags. However VirtualBox still doesn't work.
UPD: virtualbox-bin-3.1.4
UPD2: 3.1.6 and ose-versions crashes with same errors
I just tried FreeNX. I work great. I am thinking about uninstalling the vino/vnc on my machine.
However, I'd like to know if FreeNX can access the session that open locally on the server. I tried session 0 and 1, none of them can access the local session.
For default vnc, the connection will let you access the local session on the server. Can FreeNX do that?
I have a question regarding runlevels, shutdown procedure and KDM. I am on a freshly installed Slackware64 13.37 multilib system. The default runlevel in /etc/inittab is set to 3: multiuser w/o X.
Now, I log in as root and issue the command:
Code:
As expected, KDM starts up, and I log in to KDE (or another WM/DE) as a normal users. When I am finished, I either issues
Code:
In Konsole or click on Shutdown in the KDE menu. The shutdown process is initiated, as expected, but then it stops, and a window alerts me, that there is a session open by user 'root'. If I click OK, the machine is finally shut down.
Now, if I interpret this correctly, the behaviour of Slackware64 13.37 has changed here, compared to 13.1. In previous versions, the root seesion was closed, when I changed the runlevel to 4 with the telinit command. Now, the session remains open, obviously.
My question is: Is this the correct behaviour, and isn't this a security whole? An unnoticed (!) open root session while I am surfing the web as an unprivileged user in KDE could be dangerous, I think...
Is it misconfiguration in my system, or is this the way it should be?
I would love to auto-start tomboy at startup. How can I do this ? [Moderator edit: fixed Subject so nobody would expect an automatic Lunch. Is that the same as a free one? ]
View 2 Replies View RelatedI'm using wmctrl on an Ubuntu machine to manage windows from a script, that I run inside a (gnu) screen.
If I start the screen session from the local machine, wmctrl works fine, including if I completely close the terminal window and issue the wmctrl commands when connecting to the screen remotely via ssh.
Conversely, if I connect remotely with ssh and start a screen, wmctrl doesn't work (returns "Cannot open display") even if I attach that screen session locally from the Ubuntu Terminal.
I guess there is some hidden screen parameter that doesn't get set in a way that allows accessing the display when it's launched remotely -- any ideas what it is and how to modify it from within a remote ssh-screen session so that that the script can access the windows?
I'm ssh'ed into a machine and logged in as a different user. Is it possible to open a few new windows that will still be ssh'ed into that same machine, still logged in as that user?
View 2 Replies View RelatedI am using SLES 10 SP3(x86_64). I was trying to install gtk/wxwidget through yast.
After that i rebooted my system, now system is failing to load in GUI mode.
If i can give the log of last few lines are as follows
Then it asks for login, only shell is available for me. How to login to gui mode..
I tried using the command gnome-session it gives error (gnome-session: 4101): Gtk-Warning **: cannot open display:
Also i tried using init 5, but again it prompts the my servername.
I am downloading a big file on linux VPS, and I am connecting remotely via Putty to do it? Once I initiated the wget command to download the file, if I close the putty window, will wget continue to download the file in the background even though the session is technically closed?
View 11 Replies View RelatedAfter finally getting libptp2 to compile I find that ptpcam does not work. This has worked perfectly fine before with the same camera using Slackware 12.0, I am now using Slackware 13.1 and ptpcam will simply not work. The error is as follows:
Code:
x86_1# ptpcam -l
Listing devices...
bus/dev vendorID/prodID device model
ERROR: Could not open session!
Try to reset the camera.
I have tried to reset with "ptpcam -r", I have also tried to disconnect and reconnect the camera to the USB system, I have tried to reboot the computer, I have tried to use different versions of libptp2 -- all to no avail. The strace shows the issue is apparently a failed ioctl(), although I have no idea why it fails:
Code:
open("/dev/bus/usb/002/004", O_RDWR) = 6
write(4, "1"..., 1) = 1
read(3, "1"..., 1) = 1
[code]....
I have verified that the camera is working in Windows 7 on the same physical computer and I can see the camera from lsusb and dmesg output when I connect it to the USB system. This system is Slackware 13.1, Linux x86_1 2.6.33.4-smp #2 SMP Wed May 12 22:47:36 CDT 2010 i686 Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz GenuineIntel GNU/Linux.
When i try to create a virtual machine using the Windows 7 Enterprise Evaluation iso file, everything goes as planned untill i click on the start button. when i click on it i get two error messages. the first: Failed to open a session for the virtual machine Windows 7. The virtual machine 'Windows 7' has terminated unexpectedly during startup with exit code 1. Kernel driver not installed (rc=-1908). The VirtualBox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv. reinstall the kernel module by executing
'/etc/init.d/vboxdrv setup'
as root. Users of Ubuntu, Fedora or Mandriva should install the DKMS package first. This package keeps track of Linux kernel changes and recompiles the vboxdrv kernel module if necessary. i have installed the DKMS package, but when i try to run the command stated in the error message, i get another error message in the terminal:
[code]...
i have to install the driver that is specified (vboxdrv) but i do not know where to find it.