Virtual Network Computing (VNC) is a graphical desktop sharing system that can be used to control a computer remotely.

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9
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3answers
4k views

Differences between VNC and ssh -X

Why would you use VNC (or for that matter NX) instead of just using ssh -X (-Y). I read that VNC uses less bandwidth, but is there any other differences/advantages with respective tool?
7
votes
2answers
322 views

“supervisory” software for school rooms

In a schoolroom there are 15 machines + 1 the teacher's PC. All have ex.: Ubuntu 10.04 LTS. Are there any softwares that can be used on the teachers machine that can "audit" the students 15 PC? ...
6
votes
2answers
465 views

Configuring a vncserver so it's only accessible from my ssh tunnel

Since I use vnc through an ssh tunnel, is there any way I can block the open vnc port that the remote machine is listening on without it affecting my ability to use the ssh tunnel? Both machines are ...
6
votes
1answer
6k views

Changing screen resolution/geometry of a vncserver without randr in Linux

I want to change the resolution / geometry of my VNC session dynamically without affecting the programs running inside it. I referred: Changing the resolution of a VNC session in linux. I don't have ...
5
votes
4answers
3k views

How to copy text to xterm

How to paste text in a xterm? Now I can copy text from xterm to an outside application, like Firefox, by highlighting the text there. But I can not copy text from firefox to xterm. I am just normal ...
5
votes
3answers
199 views

I'm moving up from managed hosting to a VPS. What do I need to know?

I'll be starting to use a VPS for my web hosting this week, which is a big step-up for me since I've only used managed/shared services before. I've a bit of experience with Linux and I'm not afraid of ...
5
votes
1answer
371 views

SSH tunnel with VNC?

In theory: I have a low-power consuption machine: eee pc, ok. I need to run a virtualized windows xp on it. (Because of a windows-only program..) I need to reach it from a smartphone (Android). The ...
5
votes
2answers
295 views

Is there a xterm equivalent that is optimized for use over VNC?

tl;dr Is there a terminal emulator that uses rectangular copies for scrolling? I'm doing a lot over work over the internet just now (hacking a program on my employer's cluster that can't be ...
5
votes
1answer
336 views

How can I control an existing remote shell?

On my remote machine, an xterm/shell has been created (by another process). I have full access to that shell through VNC. But really I would like to be using a text mode shell on my local machine. ...
4
votes
3answers
8k views

Enable remote desktop for Gnome from command line?

I am trying to set up some automation scripts to set up a Linux environment. I would like to enable remote desktop sharing without the user having to actually use the GUI to do so. My plan is to write ...
4
votes
2answers
3k views

Install a GUI (KDE) on a centos 5.3

I'm trying to install KDE on a vps of centos 5.3. These are the steps: yum install kdepim yum install vnc vnc-server x11-xorg vncserver vncserver -kill :1 vim ~/.vnc/xstartup #(replaced the last ...
3
votes
2answers
791 views

What is the relation between DISPLAY :1.0 and port 5901

When I start a new X server using vncserver I can connect it using port 5901. From, say, a terminal, I can also do a: export DISPLAY=:1.0 xterm (it's just an example) And I get an xterm on the ...
3
votes
2answers
463 views

Accessing a remote OSX system from OSX, Linux, Windows

Is it possible to connect to a remote OSX machine using OSX, Linux or Windows in a way similar to Windows' remote desktop?
3
votes
3answers
3k views

VNC send Ctrl+Alt+F1-F6 to server

I've been trying to figure this out now for a while, I'm connecting to virtual machines through VNC, and by default you get a graphical or ncurses interface, and CTRL+ALT+F3 takes you to a console ...
3
votes
2answers
603 views

x11vnc : how to have the login screen?

I use x11vnc since long, to connect from my office to my home. My goal is to access to my computer exactly as if I were in front of it. So when I return to home I can continue was I started remotly, ...
3
votes
2answers
4k views

'd' Key on VNC Viewer Minimises All Windows

I'm running vnc4server on an Ubuntu 10.10 box, and connecting to it from an Ubuntu 8.04 machine using TightVNC Viewer 1.3.9. I'm unable to type anything with the character d within the VNC session, as ...
3
votes
1answer
126 views

Installing XRDP on Cent OS 6.5

I am trying to install xrdp service on one my VPS server, and though all installed successfully I get following error after connecting via Windows MSTSC service. Following are the resources I have ...
3
votes
4answers
257 views

LAN only VNC help

GOAL: I have 2 computers in a LAN environment (I will refer to them as [computer A] and [computer B]) and I want to log into [computer B] via [computer A]. I have a VNC client on [computer A] Remote ...
3
votes
2answers
3k views

How to configure xorg.conf for widescreen VNC on headless Linux/Ubuntu?

I have a Ubuntu 12.10 Box configured to run headless. I've managed to boot X headless by a lot of trial and error but I still have a glitch: When booting using the monitor, it all works ok, widescreen ...
3
votes
1answer
430 views

Grey background in vncviewer remote desktop

I keep getting a grey background in my VNC viewer on my VPS, like so: My .vnc/xstartup is as follows: #!/bin/sh unset SESSION_MANAGER exec /etc/X11/xinit/xinitrc gnome-session ...
3
votes
1answer
127 views

Identifying local and remote sessions

I would like to write a startup script that would perform it's task if it was run on the local machine, but not if it was called from a remote xrdp session. If Local { do something } If remote { do ...
3
votes
2answers
1k views

Debian VNC (Remote Desktop) only allowing first connection, then turns off

Basically if I reboot the machine, I can vnc into it (using ultra vnc) but I can only do it once. It seems that the vnc daemon stops working after the first remote desktop session is closed. I have to ...
3
votes
0answers
180 views

How frequently are updates sent to a VNC client?

I am trying to understand how the VNC mechanism works. The RFB protocol 3.8 specifications say : The update protocol is demand-driven by the client. That is, an update is only sent from the ...
2
votes
2answers
2k views

How to tell who is connected via vnc to my machine?

How do I check how many vnc connections or different users are currently connected to my machine? Only through wireshark? And how do I kill any other users connected through vnc?
2
votes
3answers
3k views

Task Switcher inside VNC

I run a VNC client (tightvnc) along with other applications on a Windows machine. Inside my VNC session, I typically have several xterms and gvim windows open. How can I switch between the ...
2
votes
3answers
98 views

Why is an application via 'ssh -X' slower than vncviewer via 'ssh -X'

Very simple question with strange effect: If I run a programm via x-forward it performs very bad when it comes to animations. E.g.: ssh -X <USER>@<SERVER> "application" But if I start ...
2
votes
1answer
1k views

How can I disable the X-server on Fedora 17?

I want to use a Fedora 17 "Beefy Miracle" system as a network-shared desktop for cooperative work. For this I'm using TigerVNC which brings its own X-Server and starts a completely separate desktop ...
2
votes
2answers
3k views

telnet to localhost and loopback device IP works, but not LAN ip (Xen + Ubuntu)

I have set up Xen + Ubuntu per the instructions at https://help.ubuntu.com/community/XenProposed. I am now ready to install a HVM guest OS (Ubuntu Desktop 12.04). After I start my HVM guest OS xen ...
2
votes
1answer
151 views

How can I program vncserver to automatically setup my shells for me?

I use VNC to connect to a hosted machine. Whenever I start a VNC server at some port and connect to it, I first need to setup my shells for me - 5 of them in a particular configuration that I like and ...
2
votes
1answer
164 views

Running VNC viewer without opening a console

Right now I have to open a console and type: xtightvncviewer [ip-address] to open the viewer. That's okay, but then I need to leave the console open or otherwise the viewer will close. I've tried: ...
2
votes
2answers
4k views

How can I connect to Gnome 3 with a Windows VNC client?

I used to be able to connect to my Gnome 3 desktop from a Windows machine with a VNC client. But after an upgrade (on the Linux side) a while ago, it quit working. When I attempt to connect, all I ...
2
votes
1answer
634 views

See server desktop in tightVNC

I installed tightvncserver on one Linux machine and xtightvncviewer on another Linux machine. I can connect from client computer to server computer without problems. There are two problems: The ...
2
votes
1answer
2k views

Authenticating with x11vnc: what's the difference between -auth and -rfbauth?

I'm on xubuntu 11.10 trying to setup x11vnc server. I followed instructions here and I can connect to VNC server - but it never asks me for password! Is there a difference between these 2 options: ...
2
votes
1answer
566 views

How to config Vino to let vncviewer show the hostname of server instead of “LibVNCServer ”?

When vncviewer connected a vncserver which is on Windows, the title of vncviewer will be the hostname of windows server. But when vncviewer connected to vino vnc server on Linux, the title of ...
2
votes
1answer
1k views

FreeBSD: Opening X applications after su to root?

Using FreeBSD 8.2. I'm accessing my machine over vnc using tightvnc. I log in as my normal user. This is okay. I can open X applications and they display fine. Then I su to root and they won't ...
2
votes
2answers
265 views

How to have the login screen through VNC in Oracle Linux?

I know this question has been asked here previously [ref1] [ref2] also here but so far I have been unsuccessful in my attempts. Can anyone provide a detailed guide on how to go about achieving this? ...
2
votes
1answer
123 views

Establishing client VNC connection over SSH in one step (e.g., with the -via option)

How do I reduce these two commands to one? I am connecting from my client to an x11vnc server and the two commands below already work. I just wish to do it in one step: first command: ssh -fNL ...
2
votes
1answer
1k views

Vino on Gnome DE Fedora 18 listening on 0.0.0.0

Listening IPv4://0.0.0.0:5900 After a bit of searching I found this in an error log somewhere. I appreciate the vagueness of this but how do I configure the ip vino should be listening on? also I ...
2
votes
2answers
636 views

How can I allow a different user to connect to my session using X11vnc?

I'm trying to use x11vnc to allow users to remote control certain computers. This works fine in general, but there is one aspect I have trouble implementing. I want to restrict access to a specific ...
2
votes
1answer
2k views

Headless Debian Server + Windows Clients + X11 Forwarding

I have a headless debian server that I SSH into regularly. I want to know set it up so that users can ssh in and then run something like iceweasel, and a window will popup on their machine which is ...
2
votes
1answer
1k views

Disable Hardware acceleration on Gnome 3 or fix VNC

I've just upgraded my openSUSE to 12.1, which ships with gnome3. Previously, I had gnome2 running with vino-server as a vnc server that starts upon login. With gnome3 this works too, but the vnc ...
2
votes
1answer
1k views

TightVNC not running gnome-session

I have a Debian Lenny box with Gnome desktop. I've installed Tightvnc server on it and would like to see a Gnome session when connecting from another computer using VNC viewer. But for some reason it ...
2
votes
0answers
29 views

VNC - Arch - Gnome; I can't type in the password on the login screen because it is cleared every second

I have an Arch linux box that is almost running perfectly but when i connect to the vncserver and the sreensaver turns the screen black, i am forced to reenter the password on the loginscreen of gnome ...
2
votes
2answers
229 views

launch x11vnc on bootup

I am using archlinux version 3.10.27-1-ARCH on my remote PC and I would like it to launch x11vnc server on successful bootup. Though i can start the x11vnc server manually, I am having trouble ...
2
votes
1answer
852 views

How to get Evolution to run in VNC on Debian/Wheezy?

For many years I've been in the habit of, when away from home, VNC-ing (over ssh) back into my "home machine" and running Evolution (for email, contacts etc) in a tightvncserver environment there. ...
2
votes
0answers
70 views

How to set up remote graphical sessions on CentOs?

Trying to set up a Centos 6 server configuration where we can automate the running of an application that uses Selenium. In this case, ideally, we should be able to: Create a graphical session ...
2
votes
3answers
5k views

Can not get a VNC Remote session to Gnome 3.6.2 with Fedora 18

I have installed Fedora 18 with Gnome desktop and installed tigervnc-server. This same setup has worked fine with several other computers with Fedora 17, allowing me to do remote connections with ...
2
votes
0answers
87 views

Alternate screensaver settings on different X instances

On my desktop system, I run two instances of X-- one is associated with the physical screen, one is associated with a virtual screen (a la vncserver). I use the physical one to do things related to ...
2
votes
0answers
63 views

Regain control of an X Server

I have a Gnome session running on my server. I started it with tightvncserver. Now it wont let me in anymore because of Too many authentication failures - client rejected This seems to be a ...
2
votes
0answers
419 views

Configuring default resolution and color depth for RealVNC's vncserver-x11-serviced?

When searching the web for information about how to configure the default resolution and color depth for RealVNC sessions, I always come across stuff that talks about passing commandline parameters to ...