Networking :: VNC Server - GNOME Desktop Delivered Via VNC Got Frozen
Aug 22, 2010
I have followed the official instructions here to setup VNC service initially and was able to get it working.
However, during the course of setting up my BIND service, I have done the following:
1) Turned on SELinux
2) Used system-config-security to add the ports TCP:53 and UDP:53
When I tried to save the settings from 2) above, my GNOME desktop delivered via VNC got frozen.
Now when I tried to restart vncserver with "service vncserver restart", I see the following. I am also unable to connect via [url] anymore.
Code:
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Jun 21, 2010
Just setup 5.5 as Server-GUI installation last night. Ran latest updates today; it requested a restart; logged in to console; GUI desktop all looked normal at first, except that the panels on top and bottom are empty, except for the menu "Applications Places System" items (upper left) are there, but non-functional. The desktop icons for "Computer, Home, Trash" are functional. Update as I am writing this: The menu header items are now GONE as well, but icons still work (but don't help me).
Problem is, I don't have access to any apps that will allow me to reboot the machine with access to "Shutdown/Restart". If I hit the reset button, will it be OK? Or will it blow up like a Windows machine? Luckily I can reinstall if necessary, but the update thing might crash me again. All was fine before applying updates. Anybody having problems with the latest updates?
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May 9, 2010
I had to do quite a lot of digging before I managed to work out how to do this. It turns out to be reasonably straight forward, and so here is my howto all in one place.
Objective: Connect to my Ubuntu (Lucid Lynx) Desktop machine (which does not have a screen or keyboard) using a remote desktop viewer and get my usual GNOME desktop interface. And have the desktop persist while I am not disconnected.
I have recently discovered one niggly issue with some of the keys being messed up. 'm' and 's' in particular? I am looking into it and will update this post when I have resolved it.
The following steps were performed on a freshly installed version of Ubuntu 10.04-desktop. Just for clarity:
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Install a VNC server. There is a choice of servers I chose the "tight" one.
Code:
Setup your VNC password. This password isn't very important as my setup will only allow for connections via SSH, so 123456 is what I used. One can possibly disable it?
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At this point or the first time you run 'vncserver' (I forgot to check) the all important and much discussed ~/.vnc/xstartup file is auto generated. This is the make or break place where you can either get GNOME over VNC or not. My xstartup which required NO changes was:
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Give the VNC server a test, by running it from the command line.
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Try connecting to the VNC server:
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Ok if that all worked then great! It all did for me and my machine was fresh from the CD.
Now we setup the VNC server to run all the time. There are a variety of ways of doing this. Since this howto requires the use of a SSH shell one could quite easily run the vncserver (as we did above to test it) and then disown (haven't tested if this is actually required) commands the first time you connect. This would leave the VNC server running until you used the vncserver --kill command. This would be a suitable approach if you had many different users wanting to have VNC GNOME desktops.
For convenience in a single user setup we can get the VNC server to be started at boot time:
Code:
Make the contents of 'vncserver.user' (credits to some smart guy on some blog out there that I couldn't find again. and then I made a few improvements):
Code:
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Jan 11, 2010
I am having Sendmail ver 8.13.1 installed on CentOS 4.5. Recently we have noticed that some emails are not getting delivered to user. Mailserver is receiving emails and they are getting processed but not getting delivered to user.
I have checked mail log and in the log it shows that email has been delivered to user below is log for reference
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Sep 22, 2010
I installed sendmail in RHEL5.4 with TrendMicro Spam scan engine. The configuration like sendmail should forward all the mails to scan engine after scanning it will deliver it to the mail domains. same way all the mails coming from external servers are scanned and the delivered to local box. My problem is when i sent mail for local users its delivered locally. but when i sending mail for external like yahoo its going through scan engine. I added the smarthost in sendmail.mc file also.
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Mar 7, 2010
my mail server [URL] is hosted abc@[URL] is a pop id below are alias:
user1@[URL]
user2@[URL]
user3@[URL]
fetchmail is configured to download all mail for alias email id on local linux server and distribute to local users.
fetchmailrc config:
[Code]....
everything works fine except bcc copy is not getting delivered to email alias (at local linux server). It is delivered to local postmaster account :abc@[URL] (in Linux server) I have tried all envelope option in fetchmailrc file, but it did not work.
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Aug 12, 2011
is it would be possible create a Ubuntu dvd that contains the ubuntu server desktop and alternate install opptions, as well as all four main desktop environments (gnome, kde, xfce, lxde) and unity. since much of the data is redundant between each version cd's it would probably all fit on one disk. then all that would be needed is two disks one for 32 bit and another for 64 bit. i really think that this could work.
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Apr 6, 2011
My gnome menu bars suddenly froze for no reason. On the top, the system menu is open, but I can't click on anything. I tried Alt+F2, but I can't type anything in the popup or even close out of it. The bottom bar is also frozen, so I can't even switch between programs. The only thing that is working is nautilus, which I used to open Chrome. So without being able to run an application and since I don't know how to open a terminal with nautilus.
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Jan 22, 2010
Anyone have any idea as to what would cause the time in the gnome panel to stop? This is an epic failure... I would have been late to work today if it weren't for the coffee pot. I've had so many issues with gnome's panels I'm considering switching Desktop environments.
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Jan 20, 2010
Preface: I'm a relative neophyte when it comes to Linux anything. I was running Hardy in an attempt to learn. I recently decided to upgrade to Karmic. I liked the look of "Mint 8" (AKA Karmic).I've been running Mint nicely for about a week after a fresh install. Then.... something went spastic...
I went logged in as root and changed file permissions for my "/" folders. The change was simply making group "root" able to read and write files. Than was it. It carried out the change smoothly.
When I hit "Logout" from root, to return to my user account, the screen went white. Stuff flickered when I hit keys. I ended up having to hard boot to get it moving.
Now when I boot, Grub works, it boots to my desktop, graphics display appropriately, but NO mouse and NO keyboard. Dead system. Only thing I can do is hard boot.
I tried the recovery from Grub, no change. I have no idea where to begin. I go back and reinstall it again (3rd time). Sure glad I've kept my old W2K, or I'd be screwed.
PS - I booted the live Hardy CD to look at files. When partitions are mounted no files in "/" or "/home" can be seen.
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Jan 27, 2010
I am really hoping this is an easy fix. Somehow, on my gnome desktop, my panels overlapped one another. I was dragging and dropping files into folders and unintentionally grabbed the smaller bar and dragged it over my larger application bar.Now, when I rebooted, all I see is my desktop. I don't use icons so I have none of those. The panels are completely gray. every once in a while I will see my trash bin flashing. I am unable to right click the desktop and I am unable to use Alt+F2 for my term.I can still use CTRL+ALT+ F1,F2,F3,F4... to get my non GUI terms. I have tried killall gnome-panelstill nothing.
This is a little... odd to me... a simple click renders an entire OS useless. I would really like to avoid uninstalling and reinstalling because that would just be something you would do with a microsoft product.Edit: Everyone in a while I can right click the desktop and I get the provided menu but that does nothing for me. Also, my hard drive is constantly 'thinking' I am assuming it is stuck trying to complete the gnome environment settings... I am not sure. Oh, I have also tried removing gnome-panel and ubuntu-desktop and reinstalling those.
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Feb 25, 2010
Downloaded Ubuntu to try it out. It currently dual boots with with Windows XP on my Dell. Everything seemed to be going fine, until this problem: I started tweaking the panel (with the shortcuts). Put on the bottom with the Auto hide feature enabled. As soon as it hid, the bottom panel start glitching out, and this was followed by the desktop freezing. My media player continued to play and mouse was still moving, but I couldn't do anything. Had to manually shut down the computer. Turned it on and logged in - same problem. I think creating a new account by logging as "root" would fix this, but I have alot of preferences set up, passwords saved, etc on my account.
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Feb 9, 2011
I have KXstudio 64 installed, was changing the clock font and doing little, normal tweaks to the panel, pulled the edge in a little, and it just froze right there, and now the whole desktop is broken, unresponsive. Nothing works. I have yaquake terminal installed so i can access a terminal by hitting F12, and open applications that way, but no menu's, links, widgets, panel icons or anything are working at all, after rebooting, logging in as other user, nothing helps. I tried a apt-get install kdm or something like that, it didnt help tho.If the easiest thing to do is ditch the stupid buggy KDE desktop and switch to GNOME- then i'd prefer that.even while using the terminal, or applications opened thru it, it freezes periodically and i sit for a few minutes and it comes back. still no desktop tho.
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Jul 27, 2010
I wonder if this is the right sub-forum I quite often play around with beta releases. Sometime the Screen freezes. (so what) However is there a key-stroke ctrl-?-? to get to a login prompt ????(rather then press the reboot button) ???
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May 4, 2011
Icons Not Showing in GNOME desktop at REDHAT ES Server.Also no right click on desktop .No Action.
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Feb 4, 2010
On my local apache web server I had installed gnome desktop, because I wanted it to use as a TV. But when I installed the gnome desktop, my requests for web pages became terribly slow (4-5 seconds!). When I deinstalled the gnome desktop, the request where fast again. But I still want to watch TV on my server, so I wander if people know why the gnome desktop harms the performance of the server?
PS. with gnome desktop, ping was <1 ms, samba server worked like charm, wget localhost was <1 ms, but for some reason, when tried to get a webpage from my webserver to a remote machine, it took seriously 4-5 seconds to load a page.
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Apr 27, 2011
What I try is to execute Linux programs from Windows. What I do:
- I run an X Sever in Windows (Xmin).
- I connect to Linux server using putty.
- Stablish DISPLAY to Windows X Server.
- Run Linux application.
Really, what I do for simplifying the work is create, in a shared folder, Windows direct access to do this work. Ex: I create a link called "tora - Run Oracle Administration Tool.lnk".
When users want to run Tora in Windows, they don't have to install it. Just press the link and it runs a .cmd which does the previous operations. So users can run konsole, LibreOffice, tora, ... and all Linux programs as if they where installed in Windows Clients. And as the Linux and Windows computers are joined to Active Directory, each users access has its own configuration for each program.
Thus, they can try this programs without having to install them.
So as I can run all Linux programs... Why not allowing to run a remote desktop (I know I can do it with Vnc, Xrdp, NX, ...) If user run "konsole", a Linux konsole is open in Windows client. And then he can open X programs (I don't create links for all Linux programs, so the can run the konsole link and run any program). After displaying konsole, if I type "konqueror", konqueror is opened in Windows client.
If type kdesktop, desktop of kde is open, but the menu bar, tool bar doesn't appear...
Here is an image: [URL]
I detail it:
- My client is a Windows 7.
- Open a konsole in a remote linux (titled shell-konsole)
- Run kdesktop command.
- A new window titled "KDE Desktop" is opened.
But no menu or application bar is opened. An it doesn't takes my configuration (my configuration is Spanish).
How can I add menu and application bar to that desktop?
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Jun 24, 2009
I'm new to linux ...
i have managed to install vnc server on my linux server ..
and also installed GNOME, i connected via VNC Viewer and the desktop showed ..
but then i closed the command prompt windows that was opened on the desktop, now when i connect via vnc viewer i get an empty desktop ...
how can i re open the GNOMe?
there's no cammand line in it now!!
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Apr 26, 2011
I execute Linux applications in Windows using an X server for Windows and setting DISPLAY variable in Linux to X server of Windows.
Ex: With putty I connect to Linux and setting DISPLAY to my Windows X Server, run Linux OpenOffice.But, is possible to run a KDE or GNOME desktop, with menus, taskbar,.What command do I have to run?
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Jun 16, 2010
I am trying to install "GNOME Desktop Environment" on my server. i used the following command: yum groupinstall "GNOME Desktop Environment" I got it from this tutorial: [URL].. Now when i started the installation on my centOS 5 server. i got the following error please see this image: [URL].. Now i wanted to know how can i fix that issue.
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Feb 25, 2010
Morning All, I have a RHEL 4 box with a broken GNOME package. It boots to TWM. I have looked at some of the posts that recommend looking at config files etc. No .xinitrc file found. Cannot "exec gnome-session" , cannot find file. No choice at login screen. Some Gnome files are on the machine. How do download and re-install the entire Gnome-Desktop package?
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Oct 14, 2010
I'm curious, I believe that one of the ways that OSX make the GUI experience of *nix more 'snappy' was to ditch X and run the window manager more directly on the hardware.
If I'm looking to run Linux on a desktop, and have no interest in sending Windows to other machines on the network, can I run KDE or Gnome with no 'X' to eliminate that ever-so-slight lag with the window manager experience.
I guess basically what I'm asking is is there an equivalent of quartz for Linux?
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Feb 23, 2010
how to change CentOS 5.3 GNOME Desktop to KDE without effecting others configuration?
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Aug 2, 2011
I install ubuntu server 11.04 I select ubuntu server from boot menu then enter username and password and then i see a command line line and a black background How i can setup a graphical app (some thing like genome) for my server I do not know any thing Any body can explain all step of this for me how I connect to internet how download graphical app and install it? (I connect to web with windows 7 and adsl internet)
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Jun 21, 2011
I upgraded Ubuntu 10.10 to 11.04 on my IBM Thinkpad T41. [URL]... Since I did this, my gnome desktop freezes constantly after I connected to a wireless lan. It doesn't freeze immediately but a couple of minutes later. syslog gave me the hint that it could be a mistake in loading a module for my intel wireless card. syslog:
Code:
Jun 21 14:40:16 BlackBox pulseaudio[1508]: module-alsa-card.c: Failed to find a working profile.
Jun 21 14:40:16 BlackBox pulseaudio[1508]: module.c: Failed to load module "module-alsa-card" (argument: "device_id="29" name="platform-thinkpad_acpi" card_name="alsa_card.platform-thinkpad_acpi" tsched=yes ignore_dB=no card_properties="module-udev-detect.discovered=1""): initialization failed.
Jun 21 14:40:19 BlackBox NetworkManager[479]: <info> WiFi now disabled by radio killswitch
Jun 21 14:40:19 BlackBox NetworkManager[479]: <info> (eth1): device state change: 3 -> 2 (reason 0)
Jun 21 14:40:19 BlackBox NetworkManager[479]: <info> (eth1): deactivating device (reason: 0).
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Apr 12, 2010
I'm having a problem with connecting over ssh to a server (wrdsvr) that has me perplexed. I'm using putty to connect from my WIndows VM desktop to a SLES 9 server. If I connect to wrdsvr from my desktop over ssh and run certain commands with multi-line output, the display freezes after the first line. If I connect from my desktop to a different server (oksvr), and then from oksvr I connect to wrdsvr, then there is no problem. In fact, by running 'w' after connecting in that roundabout way I can see that subsequent commands I type into the frozen window still run.
I just can't see anything in the window itself as the display is frozen. I have sshd logging running in debug mode on wrdsvr and there is nothing produced during this. There is also nothing in the putty event log. If I type 'exit' in the frozen window, the server sees the connection as closing normally and then gone. Usually my putty window would then close automatically, but in this frozen case it doesn't. So although it is sending characters I type in, it doesn't seem to be receiving the output in return.
commands that run successfully are:
w
ls
man
less
commands that cause the display to freeze are:
ps ax
ls -l
top (for this one I don't even get the first line of output, it freezes immediately)
The machine I'm connecting from is a VMFusion guest running Windows XP. I get this behavior connecting using putty, but I also installed a demo version of securecrt (when this issue occurred previously) which saw the same problem, but I can't repeat it as my license expired. (Last time the issue went away while I was troubleshooting an immediate service-affecting problem on that and a number of other servers and I don't know what fixed it!) I exported the putty registry keys and the profiles for the two servers are identical. I tried loading the profile for oksvr and temporarily changing the hostname to wrdsvr, but saw the same issue. I am connecting over a Cisco VPN.
My colleague is on the local network and does not see this issue when he connects to wrdsvr using putty. We are both using the same version of putty 0.60. Here is the background on the servers. Both wrdsvr and oksvr are running SLES 9. My actions just before I noticed these issues were the following. I updated them using you (yast online update) to the latest patch versions. Using the rpms from Novell, I installed binutils, make, gcc, and glibc-devel and finally VMware tools on both. I then rebooted. Since then I've run you again but that hasn't changed anything. I've compare the installed patches using diff and they are the same. Now I'm working my way through the output of rpm -qVa on each one, but nothing so far.
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May 31, 2010
Yesterday while me and my friend were in the train, we tried to set up a wireless network and play frozen bubble. So one of us makes a new wireless connection, the other connects to it, but we observed this: When the creator of the wifi network opens the game and tries to start the multiplayer, it says that it cannot connect to the server. On the other computer there is no problem with it. We tried to change the host of the connection, but the result was the same (the host computer couldn't connect to the "server")
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Apr 29, 2010
In KDE's Konsole, I can do the following from the terminal:
dcop kwin KWinInterface currentDesktop
And it will tell me which desktop my terminal is connected to ( per [URL])
How can I determine what desktop number the current gnome terminal in a gnome session is connected to?
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May 3, 2010
When i logged into a gnome desktop i got this message: "The GNOME session manager was unable to read file:'/home/(desktop name)/ICEauthority'. If this file exists it must be readable by you for GNOME to work properly. try logging in with failsafe session and removing the file." What commands do i use for that? or do i need to do something else?
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Jun 6, 2010
I installed Gnome desktop environment recently then ;I' ve lost KDE desktop effects settings. I just can see Compiz Configirator. I cant configure effects independently. There is same settings in gnome and kde. And also I cant change windows appearence.
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