In computing, Virtual Network Computing (VNC) is a graphical desktop sharing system that uses the RFB protocol to remotely control another computer. It transmits the keyboard and mouse events from one computer to another, relaying the graphical screen updates back in the other direction, over a ...

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122
votes
3answers
72k views

Moving an already-running process to Screen

My office job routinely sees me connected to a Linux box via VNC. Sometimes I start a remote job on the console, and realize later that it runs much longer than expected. (Should have started that ...
23
votes
6answers
48k views

How to VNC into an existing X session?

Would like to be able to connect to an existing X display, so can access my work environment and everything I left open from home. I vaguely remember something about using x11vnc in the past. But the ...
19
votes
4answers
2k views

Is there a downside to installing VNC?

We have an Intel NUC in my university's language department that will soon host a web application used by faculty and students in the department. The NUC runs Ubuntu (14.10). I'm comfortable with the ...
16
votes
9answers
103k views

What is the best FREE VNC client and server compatible with Windows 7 and 2008 Server? [closed]

I would like know if anybody can help me choosing a good VNC Software for Servers on Windows 2008 and Clients on Windows 7 (for now on Vista, but in October, all the machines will migrate to Windows ...
13
votes
7answers
28k views

What alternatives to VNC are there for Linux? [closed]

Are there (preferably free) alternatives to VNC on Linux? Is there different remote desktop technologies for Linux or is it all based around VNC? EDIT: Thanks symcbean for your comment, good point. ...
10
votes
4answers
6k views

VNC from Windows to Mac freezing constantly [closed]

I'm trying to VNC into an OSX 10.4.11 box from Vista using RealVNC and TightVNC. I can connect successfully, but after a minute or so my VNC window freezes completely, while on the Mac the ...
9
votes
3answers
30k views

How can OpenGL graphics be displayed remotely using VNC?

I am attempting to run a program that uses OpenGL to render a model in a viewport through VNC unsuccessfully. The error message I receive is - Xlib: extension "GLX" missing on display ":1.0". It was ...
9
votes
2answers
8k views

Access KVM virtual machines over VNC without port forwarding with SSH

Is it possible to access the VMs without having to forward the remote port and VNC to the localhost? I'd like to be able to VNC into the KVM server and see the VMs display.
8
votes
2answers
15k views

SSH tunnel over multi hops using putty

I have a situation where I want to connect to a Linux machine running VNC (lets call it VNCServer) which is behind two consecutive Linux machines i.e., to ssh into the VNCServer, I have to ssh into ...
7
votes
9answers
6k views

Is there a VNC server for mac with decent international keyboard support?

I'm having trouble finding a VNC server for Mac OS X that allows me to connect from a Windows box with German keyboard layout. I've tried the built-in desktop sharing and several versions of Vine but ...
7
votes
3answers
3k views

Xen connect to dom0 with vnc?

Is there are a way to connect to dom0 using VNC without running X? I don't want an X server, I just want to see what is on the console. EDIT: Adding some background, since people seem to be really ...
6
votes
4answers
25k views

best VNC Server for Linux? [closed]

I know this may be a question about personal preferences. But, in terms of: speed / memory usage / ease of configuration/ licensing , which is the best VNC server you know? I have tried TightVNC, ...
6
votes
5answers
799 views

How to protect an OS X Server from an unauthorized physical connection?

I have an OS X 10.6 server, which I administer via SSH and VNC (via SSH tunnel). I can't leave it at the login window since then VNC connections are refused. Therefore I currently leave it logged ...
6
votes
2answers
5k views

VNC on Vista

I'm using UltraVNC on my Vista machine, and it's giving me very poor performance, even over a 300 mbs network. It seems to be doing screen polling. I looked, and it doesn't look like the video hook ...
6
votes
1answer
1k views

Adding port forwardings programmatically on a ControlMaster SSH session

I just found out about the ControlMaster/ControlPath feature of OpenSSH, which allows you to use a single SSH connection to run multiple terminals. As I often use SSH to use port forwarding to get ...
5
votes
7answers
17k views

VNC viewer not connecting to MAC from PC

I have a VNC server running on a Mac. When I try to use a VNC viewer, it says "no matching security types". Is there any other software which can connect to a Mac like RDP? If iI use screen sharing ...
5
votes
5answers
463 views

Windows remote desktop

I want to login into a Windows server with remote desktop but I want to do that in a way that the user view what I'm doing like do vnc server. How can I do? In default mode remote desktop disconnect ...
5
votes
3answers
1k views

VNC Performance

Is it normal for VNC performance to be really slow? In our small network, windows remote desktop works seamlessly, but when using VNC to connect to some ubuntu machines I can barely work even on ...
5
votes
1answer
2k views

Intel AMT - enable vnc via linux

All our old servers have supermicro boards and we used IPMI to make out-of-band managment. Mostly we used it for shutdown/restart and sometimes change some settings via the sol/kvm console. As it ...
4
votes
3answers
3k views

windows remote desktop vs tightvnc server

Is there any comparation of the bandwidth usage, it seems that vnc take much more bandwitdh, but I am not sure. Is there any way I can make vnc use less bandwidth.
4
votes
6answers
3k views

KVM switch with VNC server [closed]

Does anyone know of a KVM switch that is also a VNC (or other protocol like it) server?
4
votes
2answers
6k views

Change VNC listen address in Libvirt without restarting VM

Is there a way to to edit the listen address of a Libvirt-Machine on the fly? At the moment it seems like when I want to edit the listen address, I have to shut down the corresponding VM first, then ...
4
votes
2answers
167 views

Is there a way to publish my screen (using VNC or similar technology)

I'm trying to figure out a way to publish my screen using VNC or a similar technology. My intention is to connect a remote PC to a projector/display and connect to that PC so that i can share my ...
4
votes
1answer
1k views

How can I monitor VNC via Nagios?

I have a number of remote sites which have VNC running on a few computers for support purposes. They are (obviously) only available on our internal network. I am using Nagios to keep track of all ...
4
votes
3answers
2k views

Why does connecting to Snow Leopard from Vista using VNC hang every 5 mins or so?

There was a post discussing VNC hanging when connecting to OS X a few months back, but it was OS X 10.4, so I thought I'd see if someone has experience with our problem. We're trying to remotely ...
4
votes
3answers
588 views

Can someone explain how NX works?

I can't seem to find much about how the NX protocol actually works. I have heard it does something with sending X11 commands. But does this mean that the listening clients need to have an x server to ...
4
votes
1answer
247 views

Remote support via VPN without split tunnel

my title might not be very clear, but I'll explain my setup in more detail now. We have several customers (companies) that need to be remotely supported. At these customers we have servers running ...
4
votes
3answers
20k views

How to configure VNC in Linux Suse

I am trying to configure openSUSE 11.2 "Emerald" for Remote access, and having a problem What I have done: Using YaST -> Network Devices -> Remote Administering -> Allow Remote Administration ...
4
votes
2answers
1k views

Linux RDP/VNC/SSH Client [closed]

I use loads of machines daily. Each uses different connection methods, either remote desktop, VNC or SSH. My desktop is Linux, it would be nice if I had a tabbed interface for them all so I don't ...
4
votes
3answers
2k views

Linux Remote Desktop with username/password authentication

The environment at the moment is a selection of windows and Linux (RHEL 4/5 and SLES 10/11) whereby VNC access to the windows boxes works using ultravnc and providing a username/password combination ...
3
votes
7answers
4k views

Can Windows Server 2008 RDP be setup to act like VNC?

I have a server in the closet and an extra monitor which I setup on the wall just outside the closet. I would like to have it display various status tools. I like RDP as is but want to have the ...
3
votes
8answers
611 views

Terminal server for Linux

What are the features of graphical terminal servers and technologies available for Linux? is it open source/free how well does it scale management (?) what's the network usage, susceptibility to ...
3
votes
4answers
3k views

vnc session seem to minimise windows when letter d is pressed

No matter which VNC viewer I use when I type in something that contains the letter d, the current window will be minimised. This doesn't happen when am typing direct on the server I'm vnc-ing to.
3
votes
6answers
386 views

users connecting to remote desktop to use software

Im an IT assistant at a CNC milling company and we use a program called made2manage. Its an ERP (enterprise resource management) software. Each license is something like 5k and instead of giving each ...
3
votes
2answers
3k views

VNC connection via SSH proxy machine

I would like to make a VNC connection from home to a Windows machine at work. The Windows machine is not accessible from the outside, but there is a Linux box that does have port 22 open, so it would ...
3
votes
2answers
19k views

How to connect through a proxy using Remote Desktop?

So I've got a home server running Windows Server 2003. I use a dual network card setup and Routing and Remote Access to link the internal, private network to the external connection. The external ...
3
votes
2answers
916 views

VNC via SSH with a single command

I have a VNC server (x11vnc) configured to allow me to log into the machine at the local display (:0) via SSH tunnel, following the instructions here. My question: is there a way to create the tunnel ...
3
votes
1answer
170 views

puppet inserts two lines as one into a configuration file

I've created the next Puppet manifest file: node 'puppetmaster' { package { "screen": ensure => "installed"} $enhancers = [ "pixman","pixman-devel","libXfont","tigervnc-server" ] ...
3
votes
3answers
3k views

connecting to OS X remote management VNC from Linux or Windows

OSX box has remote management enabled (AppleVNCServer) and port 5900 open. Using tightvnc/ultravnc/realvnc can't connect because of "security protocol mismatch" (don't have the exact phrase). Googling ...
3
votes
3answers
8k views

Remotely set VNC service password

After a Windows update I cannot connect to a Windows Server 2008 machine via RDP. As an alternative, I remotely installed UltraVNC using PsExec. The WinVNC service starts successfully but when I try ...
3
votes
1answer
406 views

What is generally more secure? FreeNX or VNC?

FreeNX or VNC, which is generally more secure? I am just wondering since both give encryption. I know FreeNX generally uses SSH which is very secure.
3
votes
2answers
2k views

TigerVNC + SSH without a VNC Password?

I have a RHEL 6 system with TigerVNC installed. It is configured to only allow VNC connections through SSH. Thus, a user can only connect to VNC if they successfully establish an SSH connection to ...
3
votes
4answers
10k views

Starting x11vnc remotely when X server is already running

I have a ubuntu linux machine that I have already logged into and X server is running (it is pass the login manager like gdm). I can access this machine through ssh. My goal is to start x11vnc on this ...
3
votes
1answer
4k views

Uninstall OSXVnc under Mac OS X Leopard

I used to have need for OSXVNC (now Vine), but with Mac OSX Leopard, I'm quite happy with the built-in VNC support. I just am wondering how I go about uninstall this thing though. When I fire up ...
3
votes
2answers
1k views

Does Citrix XenApp use less network traffic than VNC or Remote Desktop?

I read in Wikipedia that XenApp is based on GDI commands sent over the network instead of based on images sent over the network like VNC does; does XenApp use less network traffic then Terminal ...
3
votes
1answer
2k views

What is the difference between TigerVNC and vnc4server?

Ubuntu ships with vnc4server which is based on RealVNC. CentOS ships with TigerVNC, which is based on TightVNC which is based on RealVNC. Does anyone know feature wise what is different between ...
3
votes
4answers
14k views

VNC on Windows Server 2008 R2

Has anyone gotten VNC on Windows Server 2008 R2 to work?
3
votes
2answers
2k views

windows vnc via ssh to kvm guest - connection failed

I've a headless CentOS6 running KVM and I want to configure a guest via vnc. The problem is my working machine is Win7. I created a guest using command: sudo virt-install --name=c6-64 --disk ...
3
votes
1answer
1k views

VNC server failure after booting - Failed to get connection to session

I'm having this error from the log file of a Tiger VNC server (version tigervnc-server-1.1.0-5.el6_4.1.x86_64): Failed to contact configuration server; some possible causes are that you need to ...
3
votes
2answers
1k views

Linux: How to Press Sysreq Key in VNC/Vsphere Client?

I'm using a Vsphere client on Windows XP over a VNC link (Vinagre) from an Ubuntu 10.10 desktop running WindowMaker. It all works pretty well, but I can't find any way to press the Magic SysReq key ...