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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2
votes
1answer
1k views

Cannot connect to Xen domU via VNC if X isn't installed on domU

I'm trying to build a Xen domU that can be connected through the Xen's VNC server. Below is the template (actually it's generated by OpenNebula): name = 'one-153' #O CPU_CREDITS = 256 memory = '128' ...
1
vote
1answer
2k views

Cannot connect to Openstack Instance via horizon, but SSH works?

I've got an OpenStack deployment running inside a VM for testing purposes. My setup is as follows: Host Ubuntu x64 with Virtualbox -> Guest Ubuntu x64 with OpenStack -> Ubuntu X64 Server Test ...
-2
votes
0answers
16 views

KVM over IP with VNC [closed]

I have a USB keyboard & mouse with an HDMI monitor setup connected to a Mac on my desk. I've been working with Raspberry Pis quite a bit and prior to having them on the network and SSH'able I've ...
0
votes
0answers
12 views

Python castro packages IOError: [Errno 2] No such file or directory: 'C:\\Users\\Ray\\.vnc\\passwd'

I try to use castro : https://pypi.python.org/pypi/castro/ to write a Python script to capture screenshots, I install RealVNC server, and try sample code on castro's website, here is my code: ...
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.
0
votes
0answers
5 views

VNC attack attempts on OS X 10.10 — should I worry/respond? [migrated]

If I turn on OS X "Screen Sharing" (i.e., VNC access), my console log gets regular messages like the following: screensharingd[1584]: Authentication: FAILED :: User Name: N/A :: Viewer Address: ...
-1
votes
1answer
43 views

Cannot Access remote CentOS machine using VNC

I am trying to connect to a remote CentOs machine through VNC to get a graphical display. I have followed the steps mentioned in https://www.howtoforge.com/vnc-server-installation-centos-6.5 to ...
0
votes
0answers
28 views

VNC/SSH: How to execute a command after logging in? [migrated]

I'm looking for a way to create a VNC console user that executes the command screen or bash immediately after logging in so they get their own restricted shell for executing commands etc. Screen/bash ...
0
votes
1answer
160 views

VNC over SSL-VPN tunnel

I've setup a SSL-VPN using Cisco ASA with AnyConnect client. The ASA is behind a IPS/Router. A handful of Linux machines have VNC setup behind the ASA. I want to allow VNC over SSL-VPN connection ...
0
votes
2answers
531 views

Installing Windows 2012 KVM Guest on Ubuntu 14.10 - unable to VNC into guest

I have a Ubuntu 14.10 (x64) host, and I am using KVM to setup a Windows 2012 R2 guest VM on it. I am using the virt-install command to set things up. I have setup a bridge network in ...
1
vote
0answers
490 views

VNC Not Seeing Gnome Desktop in Centos 7

I have a linux box running CentOS 7, which I installed in bash only mode (so it just boots straight into the command prompt), which I am using as a file server. I could do with having a GUI for ...
0
votes
0answers
14 views

VNC over a VPN connection to a home network [migrated]

I have a small home network and I would like to be able to connect to my server via vnc. My local lan is 192.168.1.0/24 My vpn lan is 10.8.0.0/24 The machine I am attempting to vnc to is at ...
0
votes
0answers
17 views

instance cannot be launched in openstack (vnc setting)

When an instance is being launched, I get a following error: No valid host was found. There are not enough hosts available. and in the scheduler.log 2015-03-27 12:22:07.537 14372 INFO ...
0
votes
1answer
31 views

Linux VNC doesnt accepting my password

I set up a tight VNC server. I used this tutorial: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-on-ubuntu-14-04 The VPS is hosted on Digitalocean. The VNC server ...
0
votes
0answers
16 views

OpenOffice terminal with no task bars and menu

I need to connect to vnc server and see the OpenOffice writer application running without any window manager. I need OpenOffice to take up entire screen. The ideal solution would be to run the ...
-1
votes
1answer
98 views

KVM unix socket file permission for VNC

I'm using kvm-qemu/libvirtd for a bunch of kvms. I'm using vnc for the graphical interface. By default, it listens on a tcp socket. I want to have it listen on a unix socket instead. Looking at some ...
0
votes
0answers
20 views

Relationship among vncserver, Xvnc, dbus, wm,

Can someone explain the relation between programs listed in title (and perhaps some I might've missed out like Xorg, Xserver, X)? Or point me to some guide/documentation/..? In recent past I've been ...
0
votes
1answer
52 views

Remote administration for Mac OS X?

I've inherited a Jenkins cluster of six Macs, all of which sit in a server room and are accessible on the internal network only, but have a shared admin user and VNC password for Mac OS X (To clarify: ...
1
vote
0answers
79 views

OSX two-factor Authentication for ARD and VNC

I am looking at the possibility to add two-factor authentication , using linOTP and Radius, to all network logins ( Servers, Workstations, Switches, etc... ) So far I have been able to set this up for ...
0
votes
1answer
3k views

What does VNC reflectors basically do?

I am confused about what vnc reflector does. From the documentation http://sourceforge.net/projects/vnc-reflector/ I got that it's proxysitting between real VNC server (a host) and a number of VNC ...
1
vote
2answers
47 views

apache listening to 7080 after installing ubuntu desktop (gui) on 10.04 vps

Before ubuntu desktop was installed sites were normal and everything (virtuals hosts/ sites) was working normally but suddenly it stopped listening to 80 and went on 7080 and 7081 any idea why this ...
1
vote
0answers
39 views

Java hosting and e-mail server on VPS [closed]

I can't find a good tutorial for this, I looked at https://www.howtoforge.com/ but there is only a weak tutorial on how to setup JDK and Tomcat in a Linux environment. For me this isn't a problem, a ...
2
votes
3answers
2k 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 ...
14
votes
9answers
93k 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 ...
0
votes
0answers
134 views

OpenStack Live-Migration VNC server error

I am following steps in : https://www.mirantis.com/blog/tutorial-openstack-live-migration-with-kvm-hypervisor-and-nfs-shared-storage/ But got a following error, when i try doing live-migration: ...
1
vote
4answers
4k views

How to install VNC server on Linux SUSE EC2 instance?

Assuming I can ssh to my Linux instance (SUSE Linux Enterprise Server 11 SP1) as root and that I can transfer files into it - how do I install a VNC server (let's say RealVNC free version) on the ...
1
vote
1answer
64 views

Linux VNC: Is it possible to bind a specific vnc listening port to a specific user?

There's a machine in my company which people connect to through VPN and work from there. That way, the whole network is blocked from their private machines but opened for that specific box. I want to ...
0
votes
0answers
17 views

Multiple screens on OSX Server

I tried to follow the 3rd answer in the following post: Mac OS X multi-user thin client server (terminal server)? I am at the point where I have the system server running and an user specific server. ...
7
votes
9answers
5k 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 ...
0
votes
0answers
97 views

Amazon EC2 VNC Nvidia GPU usage?

I have a GPU instance on Amazon Web Services I am using Ubuntu 14.04 LTS The console show that the drivers are loaded perfectly, see below output $nvidia-smi -q | head ==============NVSMI ...
11
votes
6answers
20k views

What alternatives to VNC are there for Linux?

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. ...
1
vote
0answers
84 views

KVM: VNC connection blocked

I'm running a KVM host with three client vms. Two ubuntu servers and one windows server r2 2008. All three VMs have the VNC option enabled in their XML config file: <graphics type='vnc' ...
0
votes
1answer
56 views

ubuntu run a command when vnc session starts

I have ubuntu, vnc server (Xvnc4) starts on boot with 2 sessions: VNCSERVERS="1:user1 2:user2" VNCSERVERARGS[1]="-geometry 1024x768 -depth 24" VNCSERVERARGS[2]="-geometry 1024x768 -depth 24 Every ...
0
votes
0answers
161 views

novnc apache2 reverse proxy code 1006

I just installed webvirtmgr but the noVNC console is not working (code 1006). The detailed error of the google chrome console is: [blocked] The page at ...
0
votes
0answers
168 views

Xserve running Mac OS X 10.6.8 has HTTP, SSH & ARD/VNC ports open, yet cannot connect?

The subject says it all. A client I have has a relatively ancient Xserve (2009 model I believe) that is running Mac OS X 10.6.8 Server. We’ve been able to remote into the system without issue in the ...
0
votes
0answers
62 views

stop rdp to deactivation session after close

I try to run VNC Server on my Server2012 R2 (VM on HyperV Host). I login via RDP (mstsc.exe) to a Windows Server 2012 R2. Connect via real VNC to the Server also. After closing the Windows RDP ...
1
vote
0answers
148 views

NoVNC being blocked behind firewall, how can I find the port being blocked?

We have an OpenStack cloud running internally and wanted to allow student's access to the NoVNC console from within Openstack's Horizon web panel. Everything work's internally however after adding ...
1
vote
3answers
78 views

windows VM with vshpere - not accessible

All, Am relatively new to virtualisation. I have multiple ESXi hosts that were being managed by vSphere clients running on windows VM on one of the host itself. Accidently I changed the setting of ...
1
vote
1answer
115 views

TightVNC over VPN encrypted? [closed]

I'm using tightvnc to connect to my servers over a IPSEC VPN connection with split tunneling enabled. Is my communication with my servers via VNC encrypted or unencrypted?
0
votes
1answer
735 views

Error initializing VNC client in Guacamole

I am trying to allow remote desktop connection to users on a LAN to a machine running Ubuntu 14.04. I have setup Guacamole (using these instructions) and I am able to connect to the web-application, ...
5
votes
7answers
12k 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 ...
3
votes
6answers
340 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 ...
0
votes
1answer
48 views

vncserver auto start display for root

In my rhel5 system there are cronjob scripts that are running as root which requires export DISPLAY. I have added below lines in /etc/sysconfig/vncservers to start vncserver on certain displays for ...
4
votes
1answer
1k 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 ...
2
votes
5answers
31k views

How to share desktop over LAN to multiple viewers [closed]

I need to share one machine's screen to 10 computers in the same LAN, without internet. The platform is Windows 7. I've tried Windows remote desktop help but only allows one viewer. I'm testing ...
-1
votes
1answer
127 views

Connecting to KVM VM via VNC [closed]

I just installed KVM on centos 6.5 and after I created a VM I don't know how to access via VNC. I used this command to create the VM: virt-install --name=guest_name --arch=x86_64 --vcpus=2 ...
1
vote
1answer
22k views

I can't connect to VNC Server (connection refused : error 10061). [closed]

I purchased a vps and configured it by using this tutorial (means installed GENOM desktop and VNC server): http://www.time4vps.eu/knowledgebase.php?action=displayarticle&id=41 Then I installed ...
0
votes
1answer
294 views

Vnc Viewer does not connecting but Windows Remote Desktop works

I just purchased a VPS and configured a remote desktop, it works fine with Windows Remote Desktop. but it can't be connected with VNC viewer. I assumed maybe RDs using different ports so executed ...
-1
votes
2answers
927 views

How Does Remote Desktop and VNC Work With Logged In Users [closed]

I'm not sure how Remote Desktop and VNC works on Windows. Each app has their own session when I'm logged in, i.e. I could be logged in with both apps as an administrator and each has their own desktop ...
0
votes
0answers
141 views

Does wayland support video card(s) resource isolation?

From what I know, with hypervisors, I need an IOMMU capable motherboard and multiple graphics cards to run multiple virtualized instances remotely (correct me if I'm wrong). ESXi allows for ...