Lately I've been using screen utility a lot on my Windows 10 PC via Cygwin. I usually open 5-6 screen sessions and do my work. Every time I reboot my system and start screen, it says my old screen sessions are dead and need to be wiped out before starting a new one. I'm wondering, is there a way we can make the sessions persist after reboot and I can do something like 'screen -x' and taken back to my old set of screen sessions. Thanks.
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I am looking for a way to keep an application (not a script) open in Red Hat Linux 8.2 when multiple users are logging on and off on the same machine. So if user A in one user group uses an application, logs off, I want that application to still be open when user B logs on. Is this possible? I tried looking at the GDM (GNOME display manager) for RedHat but wasn't able to make much of it.
I've tried the following methods, but none seem to work.
Thank you
You Can detach your session
tmux detach
And to attach to your session
tmux a -t SESSION_NAME
To run a virtual machine on my computer and to have more resources for it, I'd like to pause gnome. The idea is to go on other tty pause gnome from it and run my virtual machine with lower ram for the host than necessary with the use of gnome.
I did not found anything, I supposed it is not possible. But I'd like to be sure. That's why I ask the question here
My OS is linux mint 13.
Have a good day.
There isn't any way currently to freeze a process to disk on Linux and remove it from RAM, and even if there was, what you call GNOME is made up of many processes and programs that are all running at the same time so trying to co-ordinate what processes you needed to freeze would be tricky
If you want to have more resources for your VM, you could sign out of Gnome and use another Desktop Environment while you use the virtual machine. If you used window maker you would save hundreds of megabytes of ram. Window Maker only uses a few megabytes, and takes very little disk space.
If you do use Window Maker, then it is a little confusing at first. To access your applications, right click on the desktop, to get a menu. There is an application dock on the side of the screen, but by default it only holds an xterm launcher.
If your application is not in the applications menu, then you will need to start it using xterm. When is icon appears, drag it to the dock, and you will be able to launch it from there. To edit the application menu you need to right click on the desktop and select Configure Window Maker.
We have Eclipse setup as our IDE on a central Linux server. Everyone will connect to the server, opens an Eclipse instance, work on it.
Eclipse will be run as a background process, showing the GUI to the user.
What happens is, sometimes people disconnect from the SSH session abruptly(making the laptop to sleep ..etc), without properly closing eclipse, which sometimes leaves the Eclipse process running in the background.
Whenever the user tries to connect next time, they are unaware of the existing Eclipse sessions, and continue starting a new one, while the existing Eclipse processes continue running in the background taking up all the resources.
Question is, can we re-connect to that abandoned Eclipse session somehow? Is it possible to bring up the Eclipse in the same state where user left it?
I looked at GNU screen . However, it can't bring the GUI application back to the user.
This seems to be a problematic setup to me. Why not work on the local computer in the first place? But if you want (or have to) to work on the server, better start the desktop directly on the server via XDMCP, VNC, or Citrix XenAPP (commercial).
EDIT: Just found this article about xmove. I haven't heard about it before, but maybe it works.
I currently have a tiny, headless (and I certainly want to keep it that way :) ) Linux Virtual Machine set up with Vagrant and VirtualBox which, for testing, I want to run an X11 application (Firefox) whose output comes to Xming on my real machine. All that's hunky dory, working perfectly, but I'm not happy yet!
What I want to be able to do is do a few setup things, make sure everything's running correctly, then disconnect from the server and let the testing run it's course. If however something goes wrong, or I want to just check the current status of things (some of the tests may run into hours), I'd like to then hop back onto the server and point the X11 output to my machine again. But despite a good deal of Google-ing and learning loads about X11 that I didn't know a few hours ago, I can't find anything about choosing where the output of an X11 application goes, except at startup, ie;
DISPLAY=:10 firefox &
I had read some random blog post that Xephyr XServer did this (kind of act as an intermediate X11 buffer, which then redirects if you want it to, otherwise just outputs to /dev/null), but I can't find any other reference to it, or anything else doing that.
There's a program called Xpra that works sort of like "screen" but for X-sessions. It would start a separate X session from the main one, for the remote access, but you can connect/disconnect to it at will from the host machine.
http://www.xpra.org/
I currently have one acceptable way to do this, which will serve my purpose, I have a vnc4server running that takes firefox's output, and then I can connect and disconnect to that without any issue at all, just like a normal VNC server. This allows me to do what I want to do, but not how I want to do it. I'd like to be able to do this without the need of a VNC server at all.
I have got a gtk application. I want it to start automatically when I boot up the system, such that instead of getting usual login screen, my application greets the user.
My application is a sort of cash dispensing application. So user should not even see the login screen of linux. Whenever machine in boot up, after loading services and all that, my application should appear on the screen. One should not have to put any password or login in anyway to start that application.
Now so far I have tried the following but all in vain.
I put the command in my /etc/rc.local file
/home/EXE/cashier
Then rebooted machine in run level 5. But nothing happens. I get the usual login screen. Other programs that do not involve any gui or gtk, they are automatically started in this manner but not the gtk application.
Then I put
xint /home/EXE/cahier
and later
xint /home/EXE/./cashier
But they too didn't work. When I looked into details, I found out that "An Xserver is already running on screen 0, cannot open other server" or something like that.
Then I tried booting into run level 3, this time it worked.
xint /home/EXE/.cachier
But in run level 3, the font and icon sizes are smaller. Moreover some windows do not cover the whole screen.
Now I will really appreciate a way to run my application in run level 5, without showing login screen automatically.
Regards
Edit
Currently, the application is running on fedora core 2
This is more a question about linux distribution startup than it is about Gtk applications. The specifics are going to depend on your distribution, but the essence is:
Disable the gdm facility, which is normally responsible for spawning your X server.
Run xinit (not "xint") to start the server manually. This takes a client as its argument. It may work to run your Gtk application directly (it needs to be smart enough to position and size itself instead of relying on a window manager), but more likely you will want to pick a window manager to run it in. The easiest way to do this is via script that you pass to xinit.