Ubuntu Networking :: Vnc4server Starts Multiple Sessions?
Jul 1, 2010
if i stop that session, and come back later, it will have me log on at the login screen, but start a new session, with multiple instances of things..now, with vino, i could just keep the same session running, and when i VNC in, it just resumes it.. This one starts a new one.. i even tried just locking the screen, and it still starts a new one...i know there is an easy fix.. lol.. i just cannot find one.. i REALLY like how it shows me the ubuntu login on my server.. that is slick, so id like to keep that, if possible.
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Apr 7, 2010
My requirement is to route ssh sessions from a single head node to multiple slave nodes. So what i want is, for a client there is just one point of entry (master/head node) to ssh into, it evaluates the load on the slave nodes connected on to internal network and routes the ssh session, kind of a ssh load balancer. Do you have any idea what open source solution i can apply for my problem?
I have tried using LVS piranha, it works well for http and https load balancing but not for ssh load balancing.
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Jul 12, 2010
So essentially, I have 3 monitors and i'm attempting to run 2 different window managers/sessions at once split up on the monitors. It is intended to be like this:
Code:
[GNOME/Compiz - Screen0]
- Left Monitor[code]......
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Jul 9, 2010
Is it way to have more "guest" sessions (more than one)?
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Aug 21, 2010
I'm trying to run multiple Graphical sessions. How can I do this? I have read the forum article from 2006 but I get an error when executing startx --:2 [URL]
When I follow this howto, this is the error I get
Code:
# startx --:2
Fatal server error:
Server is already active for display 0
If this server is no longer running, remove /tmp/.X0-lock and start again.
Please consult the The X.Org Foundation support at [URL] for help.
ddxSigGiveUp: Closing log
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Oct 4, 2010
Will it be possible to maintain multiple sessions from Ubuntu?Actually we are working on one open source application and we have setup this application on one of our Ubuntu machine and this would act as a server for other developer's windows machine. Is any utility available(preferable open source) using which we will be able to access the Ubuntu server from all 4-5 developer's Windows machines?
Our requirement will be to access the whole system including console and GUI (same like remotely access) by using different sessions so that all 4-5 developers can start work together on the same Ubuntu machine.
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Apr 13, 2010
I use two x session, one for xbmc and the other for my desktop, that I can switch with CTRL+ALT+F7 or CTRL+ALT+F8. I start music in xbmc xsession and then switch to my desktop. When the track is finish the next track don't play, i must to come back to xbmc xession and automatically the next track is playing. I would like to have music all time when I'm not in xbmc xsession but in desktop xsession.
Ubuntu 9.10 x86_64 2.6.31-19-generic
ATI Radeon HD 4200 512MB (ATI Catalyst drivers 10.2)
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Jan 18, 2011
I have two Debian boxes, A and B. I would like that a window (for example vlc, or whatever) displays on both A and B. The process (i.e., the X11 client) runs on A. If I interact with the window from box A, it should affect the window on box B. And, if I interact with the window from box B, it should affect the window on box A.
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May 9, 2011
I just bought a tablet, I would like to VNC to my machine with a lower screen resolution to match my tablet. Right now I use x11vnc on Ubuntu 10.10, and I was thinking to start another session using "startx" but I see there are parameters for display depth but not resolution.
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Oct 11, 2010
I have a small problem regarding multiple X sessions. I want 2 X sessions started automatically on boot with 2 different users auto logged in and 2 different sessions running.
On first X session I would like to have gnome running with user1
On second X session I would like to have xbmc running with user2
So far my computer logs user1 in to a gnome session via gdm on boot. But then I have to launch a tty, log in as user2 and then start xbmc in a new X session.
How to make it work? I would also love to have the second X session active after boot. I am running Ubuntu 10.04.
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May 4, 2011
I want to be able to run multiple desktop sessions, but when I goto the next session terminal and type startx -- :2 the screen just goes all black.
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Sep 20, 2015
I have been able to log into a tty[1-6] as root or my user, and then startx -- :1, while logged in as myuser and running X on tty7, , but this somehow skips my default desktop manager (GDM3) and boot straight into LXDE (with no menus!). In /etc/X11/default-diplay-manager I have: /usr/sbin/gdm3 ? How do I get startx -- :1 to start a desktop manager?
Related 2nd question: When I did the above startx -- :1, it would start the X session in the same tty (e.g. tty2) where I was logged in when running the startx command. It used to be (in older Linux versions) that startx -- :1 would start an X session on tty8 (and the default would be :0 on tty7). Is this the (new) way things are supposed to work?
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Jul 12, 2010
I am using putty to connect to some servers. Is there a program that let you connect to say three servers and when you write your commands to server1, server2 & 3 also gets the command? So I don't have to log in to all three servers to do the exact same thing.
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May 18, 2010
I'm having problems establishing secure sessions with my bank's online banking service provider. I've already contacted their local tech and together we were unable to solve the problem. I've tried deleting my cookies, session store, cache, and none of it worked. He's currently forwarding our conversation to the service provider's tech support line, but who knows what will come of it. Or even if they will offer support for an iceweasel user. I'm using Iceweasel 3.6.4~build2-1 out of the experimental repo.
I'm able to login successfully to online banking site to view my list of accounts, however if I try going any further than that, I'm redirected to an error message page that tells me a security error has occurred - the online session has expired. I get this on browser profiles 1, 2, and 3, however I do not get the error message on profile '0' (default) or on newly created profiles. And as mentioned earlier, I've tried deleting all persistent data (cookies, session, cache) on a non-working profile and the problem still exists. Let me know if I can provide any more information.
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Sep 11, 2015
Running Jessie (with a low-pinned Debian-based repositories added to my sources.list (e.g. Kali, kxstudio) for those packages not currently available on Debian (like the Kali menu of security tools). Running on a HP 15-r189nd (Energy Star) laptop.
First question: How do I get GDM3 to add root as an option during login? I can type the root user name in. I don't need it to show the root user in the user list (would actually prefer to need to type it in), but I do want to be able to start an X session as root, since some of the Kali tools (e.g. nmap) needs root to function fully. If I type in root and try to start, it just takes me back to the GDM3 login.
Second question: When I want to select my Desktop Enviroment/Window Manager in GDM3, the list appears below the little gear so I can only see half of the list (xfce not visible to select). How do I change the GDM3 appearance/settings that will change the position of the DE list?
Third question: How do I get multiple X sessions running simultaneously? What I have been able to do, while logged in as myuser and running X on tty7, is to log into a tty[1-6] as root, and then startx -- :1, but this somehow skips my default desktop manager (GDM3) and boot straight into LXDE (with no menus!). In /etc/X11/default-diplay-manager I have: /usr/sbin/gdm3 ? How do I get startx -- :1 to start a desktop manager?
Fourth question: When I did the above startx -- :1 as root, it would start the X session in the same tty (e.g. tty2) where I was logged in as root running the startx command. It used to be (in older Linux versions) that startx -- :1 would start an X session on tty8 (and the default would be :0 on tty7). Is this the (new) way things are supposed to work? Or is there something wrong with my setup?
Question 5: Once I have started an LXDE session as root, how do I get it to show the full application menu that my regular user can see? Can I just copy the config files over? Which ones? Or is there a better way?
Question 6: Gnome used to start fine. Then I ran Gnome on Wayland once, and now regular Gnome (on X?) no longer runs, but give me a "Oops! Something went wrong" error and Alt-F4 just takes me back to GDM3. Classic Gnome and Gnome on Wayland still runs OK. Should I log a bug report?
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Oct 5, 2010
Here's the setup: One x86 server (Red Hat 4) with two serial connections to an embedded linux device. One serial connection is to a power control so the device can the restarted, and the other is used for a console to this device. Both serial connections use minicom. People on my team VNC to the x86 server, where they find the two minicom sessions waiting for them as they are left open. I would like to automate connecting to the server and communicating over the serial lines.
Supposing I use ssh to the x86 server, could minicom be used over the serial lines without terminating the minicom processes seen through VNC? If not, is there a way to re-open those windows from within the ssh session, so a user who VNCs to the server won't have to reopen them? Could a single ssh connection control two minicom terminals simultaneously, or would there need to be two ssh connections? It is assumed a user and the automated process will *not* try to access the device at the same time; the automation would trigger during off hours.
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Feb 28, 2010
I currently have a RHEL 5.4 software development server. A lot of my developers are using windows desktops and they need to run interactive sessions on the server. I need to support between 4-6 concurrent users on the server. I tried doing this with VNC but I was never able to set that up for more than one user at a time.
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Jul 11, 2011
I've written a script (that doesn't work) that looks something like this:
#!/bin/sh
screen -dmS "somename" somecommand
for i in {0..5}; do
screen -dmS "name$i" anothercommand $i
done
For some reason, if I copy and paste this into a terminal, it creates 7 detached screen sessions as I expect. If I run it from within a script, however, I get only the first session, "somename," when I run screen -ls.
Edit: If the same can be accomplished another way (e.g. with multiple screen windows instead of sessions), I would be open those solutions as well.
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Apr 7, 2010
My requirement is to route ssh sessions from a single head node to multiple slave nodes. So what i want is, for a client there is just one point of entry (master/head node) to ssh into, it evaluates the load on the slave nodes connected on to internal network and routes the ssh session, kind of a ssh load balancer. what open source solution i can apply for my problem?
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Jul 15, 2011
I'm porting C++ application from ARM to MIPS platform. It works now, but I see some strange timing problems. I've seen now that My app process is called multiply time. Here is "top" output:
Mem: 24592K used, 102084K free, 0K shrd, 0K buff, 16864K cached
CPU: 0% usr 99% sys 0% nice 0% idle 0% io 0% irq 0% softirq
Load average: 4.02 2.17 0.95
PID PPID USER STAT VSZ %MEM %CPU COMMAND
1888 1875 admin R 12096 10% 98% ./my_app.exe
code....
I don't see something like this when I compile it for x86, nor ARM.On MIPS I use uClibc instead of glibc.
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Jun 20, 2011
I tried to install vnc4server on my new ubuntu 11.04 but its fauling and here is the error log sunandi@sunandi-MM061:~/Downloads/linux-2.6.39.1$ sudo apt-get install vnc4server
[code]....
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Mar 3, 2010
It has no monitor attached, I'm accessing it graphically through vnc4server.It has no graphics card, and I want to get OpenGL to work on it, using software rendering.Right now, when I try to run glxgears, I get this.
Code:
Xlib: extension "GLX" missing on display ":1.0".
Error: couldn't get an RGB, Double-buffered visual
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Feb 10, 2010
Sometime after I upgraded to ubuntu 9.10 I've been having trouble with my wireless network connection.It will usually log on to the network, then disconnect a shortly after. Then try to connect again, usually successfully, then it cuts off again. Then connects again, then disconnects. FWIW, ubuntu 9.10 works on a different machine pretty consistently, so I don't think its a problem with the router.
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Mar 10, 2010
I have vnc4server installed and I can get it to work on a desktop by desktop basis, but I can't figure out how to get it to run on startup. There isn't a script for vnc in /etc/init.d/ How do I go about creating one? Is there a better way to solve this problem?
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Aug 12, 2010
I have a mate who runs the IT in his office. He has recently set up and secured the network but now has an issue logging in to the network from home. Here is the message I got from him regarding the set up and what he is having specific issues with.
I was really pleased with the results on my Pen Test; the office itself is a pure MS environment but the testers all use Ubuntu 9.10 to hack with. The main tools of choice are Nessus and Ophcrack with a bit of NMap. It's pretty scary what you can do with just these tools. I had a Wireshark trace running all the time and it's fascinating to watch how these guys crack open a system. The only really major change I've had to implement on my network is to force the use of SSL as a transport layer for our remote desktop sessions. This has forced me to start using MS RDP Client 5.2 because it can use certificates on the session. The problem I've got now is that the Terminal Client in Ubuntu can't do this so I can't remote in from home on my Ubuntu laptop.
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May 27, 2010
So I have a usb wireless adapter that I set up on my Xubuntu system, and it has been working great since. The laptop that I have Xubuntu on is kind of a POS, so I wanted to try out LXDE to see how it would fare in terms of resource usage.When logged into an LXDE session, all of the ndiswrapper settings appear to be the same, but there are no networks listed and it doesn't connect.
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Aug 15, 2010
I run pidgin instant messenger via fbpanel taskbar via fluxbox window manager via xvnc vnc server via xrdp remote desktop terminal via sesman session manager.
One problem I've found is that Pidgin does not detect when I stop mousing or typing. I also run gnotime time tracker and it too is not able to detect when I don't type on the keyboard or move the mouse in my X-Windows.
Some questions:Is there a common problem? Is there a workaround? Is there a way to diagnose the problem?perhaps a program which says which window got the input which resets the idle timeout
Is there a way to examine or record the idle periods?
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Feb 27, 2009
I am looking at ways in which I can restrict the SSH session requests come by specific SSH client (say Putty or NX Client). Is it possible to restrict SSH client login to a client application?
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Sep 8, 2010
With Mellanox 10G NICs and the MTUs set from 1600 to 9000 we have tcp sessions hanging. Executing ls during an sftp session just hangs. The same thing happens for an ssh session, if execute ls I might get few item in the directory but then the session hangs. Like wise for FTP. The Fujitsu switch is configured by default to handle jumbo frames. At 1500 MTU everything works fine. We are running the 2.6.25.14 kernel with CentOS 5.2 and the Mellanox driver.
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May 20, 2010
I have an old pentium 3 computer that has ~7 NICs installed. These NICs are attached to modems and other networking equipment. According to the linux ping page on computerhope.com, it seems that one could send a ping from a certain specified NIC. How would one go about this?
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