Questions tagged [vnc]

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

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17 views

2 x11vnc servers with separate displays showing different windows, overlapping

I am running a python (includes pygame) program on debian-jessie system with x11vnc and xvfb installed. I want to display terminal window and pygame window separately using xvfb and x11vnc. My ...
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20 views

VNC Black screen using GNOME

I was working in a Oracle Linux server through XRDP with Xvnc(TigerVNC) and the server crash. After the crash I only can access the server through XRDP with Xorg, but not with Xvnc, when I try to ...
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42 views

Access Ubuntu desktop remotely from Mac OS

I would like to be able to access my Ubuntu 18.04 desktop (not just terminal) from Mac OS (Mojave), and have tried a couple solutions, with less-then-desirable results: Installing google chrome ...
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17 views

Clipboard problem in x11vnc

I am having problems when using the clipboard function in x11vnc. I have no problems copying something from the server and pasting it into my client, but I can not do it from the client to the server. ...
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1answer
79 views

Configuring TigerVNC systemd process on Ubuntu 18.04

I've been trying to get TigerVNC working on a clean install of desktop Ubuntu 18.04 (GNOME and all). Running vncserver :1 -localhost no allows me to connect perfectly fine, but my systemd service does ...
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17 views

Copy/paste on local desktop not working when tigervnc active

I cannot copy/paste (ctrl+c or just right click) text/file on my computer, when I have tigervnc connection active. When i.e. I do ctrl+v to text editor, I get a content of a clipboard of the remote ...
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1answer
27 views

How do I force x11vnc to stream lower quality?

I need to access a remote machine via a high latency, slow connection. It uses x11vnc and I want it to broadcast video in much lower quality than what's actually on the screen. First thing that comes ...
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1answer
27 views

x11vnc minimal effort

I have a fresh Ubuntu 16.04 installation, which is the only OS on my computer. Not any package installed or whatsoever. I don't want to have a graphical environment on my local machine, however I want ...
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19 views

Missing icons with Xfce on Ubuntu 18.04.2

I use Ubuntu 18.04.2 with VNC connection from Windows. I see most of the menu options and items in folders without its icons, as follows: System information: Linux vps568 4.15.0-52-generic #56-...
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3 views

vnc on alternate account fails

I run su -l work -c "vncserver :3 -geometry 1200x900 -name Work" to connect via vnc to my work account from my private account on the same machine. When running vncclient, it starts with just a black ...
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9 views

Window consumes entire screen and can't be minimized or killed, how to escape?

I'm running rhel6/gnome via a tigervnc session (from windows). Sometimes I somehow get into a mode where a window consumes the entire screen and has no window manager controls visible, or system ...
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35 views

Find out the number of clients connected in x11vnc

I am developing an application that uses x11vnc in the background and I would like to know how many users are currently connected. I have reviewed the list of commands but I have not found anything ...
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1answer
9 views

vnc dynamic runtime firewall ports >= 5901

In RHEL/Centos 7, TigerVNC-Server only needs 5901/tcp for desktop:1, then 5902/tcp for desktop:2, and so on. I think any VNC-server would operate the same way. If no one has typed vncerver for ...
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1answer
882 views

tightvnc on Linux Mint says “could not acquire name on session bus”

I have two linux machines running Linux Mint 19.3. I just install tightvnc server on one of them from apt. On the other I install remmina and remmina vnc plugin. I run vncserver on the host and it ...
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1answer
17 views

How to allow certain IP's accessing an IP:Port range?

So I have an ESXi server setup with pfSense acting as the DHCP Server for the VM's. I use VNC's to access each VM over the internet (For example with ports :5905,5906,5907 etc.) and I would like to ...
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31 views

X11 logout on display :0 messes the behaviour of other X11 displays running at the same time

Working on any of the conventional desktop environments (KDE, mate, cinnamon, etc, wich usually run on the display :0 ), I am able to successfully launch a vnc xserver on display :1, and connect to ...
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1answer
300 views

VNC server not showing icons in Ubuntu 18.04

I have installed vnc4server on my Ubuntu 18.04 vps server. Used ssh tunnel to connect on and via VNCviewer connected to it. I can't see icons in the start menu or the icons of the folders. Please see ...
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3answers
72 views

Problem creating SSH tunnel on linux

I'm following this guide to setup VNC on my DigitalOcean droplet. Everything works fine up to step 3. When I try to create an SSH connection on my local computer using ssh -L 5901:127.0.0.1:5901 -C -...
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14 views

Realvnc and hpux: how to run dtlogin via vnc at startup?

I know how to use a "simple" vnc session. vncpasswd vncserver and I had a cde session wich start on port 5901 vncviewer host:5901 But I want a "dtlogin" screen starting on port 5900 Like MacOS, ...
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35 views

Do I need to log into the remote desktop environment first before connecting to it by xpra or VNC?

I connect to a remote Lubuntu PC by: xpra shadow ssh:t@olive:0 When I log out of the remote Lubuntu, the connection of xpra is lost. When I try to connect to a remote Lubuntu which I haven't ...
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26 views

Can any (web) application tell that the web browser is accesed from a different host via vnc or apra?

If I access the desktop of a remote Lubuntu 18.04 via vnc or xpra, start a web browser in it, and open some URL to run some web applications in the browser, can any web application tell that I am ...
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1answer
110 views

Can I lock the screen of a remote computer and still keep it visible to the others on its side, but keep it unlocked to me on my side?

I would like to accessing a remote computer via xpra or vnc or some other desktop sharing way, and on the site of the remote machine , I would like to lock the screen (and optionally make it ...
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98 views

How to screen share/vnc from Mac (10.11) to Linux desktop (Ubuntu 16.04)? + issues sshing

I'd like to use screen sharing/I'd like to VNC to a Linux OS desktop from my Mac (so I'd like to view the Linux desktop on the screen of my Mac). Mac OS version: OS X El Capitan, 10.11.15A2301. Ubuntu ...
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1answer
383 views

VNC versus xpra

I was reading https://security.stackexchange.com/questions/120612/x-windows-security-vnc-and-x-server-vs-xpra. In the following scenarios, what protocols are encapsulated i.e. above what protocols? ...
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1answer
129 views

Is there some way to unlock server host's screen from VNC client side?

I am running vino server on a laptop, and a vinagre on another. Both run Lubuntu 18.04. When the first laptop' Lubuntu 18.04 has screen locked, the vinagre on the other shows a black screen, and ...
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98 views

How shall I start Vino server (possibly after ssh to the server host)?

I am following https://askubuntu.com/a/530196/1471 to start vino server. (By the way, not sure if related, I had some security problem before after running the commands. See https://askubuntu.com/...
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1answer
221 views

vncviewer fails to connect (fedora-29)

So I already fixed this but thought I'd drop the solution here for posterity. I have 2 fedora-29 boxes. I want to use (tiger-)vncserver and (tiger-)vncviewer in the usual way. Trouble is, it was ...
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1answer
83 views

Protecting VNC server with SSH tunneling without preventing iPhone connection

I have a VNC server that I hope to access from multiple computers as well as my phone (using the VNC viewer app). I have a password on the server but that did not stop me from getting "Too many ...
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1answer
84 views

How can you secure a server? [closed]

A while ago, I ran a vino server inside my local wifi network, and the vino server wrote messages on stdout that some strange IPs from the Internet tried to connect to it. I wondered, "Is my server ...
0
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1answer
198 views

cannot offline install vnc server on CentOS 7

I am trying to install realvnc server on my CentOS 7 VM. I've downloaded the rpm package from the official website. I am using ESXI and nothing is or should be connected to the internet. When trying ...
1
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1answer
31 views

What's the relationship between X and VNC?

I thought they were completely different. But I just noticed, running Screen Sharing on MacOS that the window titlebar says "pitosalas's X desktop". I thought Screen Sharing on MacOS is a VNC client ...
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80 views

From Internet access single application via VNC like

I am wondering what are my options to access one single gui application remotely, rather than full desktop, as VNC does. Also lag is an issue. Any other way to make remote VNC, super responsive-- may ...
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234 views

Tunneling VNC for guacamole

I want to set up multiple Raspberry Pis to be accessible via VNC. For this I think guacamole is a good option as it doesn't require to install a client which is really what I want. The thing is that ...
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80 views

QEMU over ssh without using vncviewer

It seems that when I want to run qemu-system-x86_64 on a node via ssh -Y, I have to connect to the guest via VNC. So, here is an example: [mahmood@rocks7 ~] ssh -Y compute-0-0 [mahmood@compute-0-0 ~] ...
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412 views

tigervnc vncviewer could not open some system applications

The computer that I am trying to connect to using vncviewer is a Ubuntu 18.04 system with dash-to-panel gnome extension. When I used the first .vnc/xstartup , I only got black screen once connected. ...
0
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1answer
26 views

How to remote view OSX machine from Fedora with TigerVNC

I understand the I can use VNC protocol for remote viewing. There is a mac on my network which has VNC enabled. I have downloaded TigerVNC dnf install tigervnc I get the IP address of host I want ...
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1answer
2k views

vncserver dies immediately upon start

I'm trying to configure VNC server for remote logins on a fresh install of CentOS 7, but I just can't seem to get it working right. I've followed the install steps here including the firewall-cmd ...
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1answer
34 views

Send each VNC connection to a separate display

I want to use vncserver on a CentOS 7 server to send every new connected user to their own isolated display (virtual, not physical). Making virtual displays at server startup with the matching ...
0
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1answer
73 views

VNC Server - securely forwards to the localhost connection for VNC

I followed this link https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-on-ubuntu-18-04 and I created the VNC server in my remote VM, started the VNC server in it and ...
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36 views

VNC Session user

If I enable x11vnc on my system, then is there any way to know who (which IP) have taken the remote session, if any ?
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12 views

Changing the dektop manager for one user through VNC

For one of the user, I want to set the default desktop manager to something other than Gnome which is the default one in Centos-7. The user connects through vncviewer. I see a guide here, however, I ...
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0answers
84 views

Tightvnc server

I have a VM in which I installed the VNC server (TightVNC) using the link : https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-on-ubuntu-18-04 It is installed ...
2
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0answers
2k views

No VNC extension on display on VNC desktop

I have started vncserver or remote instance with the vncserver command and now is able to connect to it with VNC client. Unfortunately, I can't start vncconfig due to error No VNC extension on ...
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1answer
90 views

SSH and VNC security issue question

My Centos 7.5 server in the past few days got thousands of incoming SSH login attempts and today I couldn't log in to my VNC clients because it just said "Too many security failures". So would like to ...
0
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1answer
589 views

VNC Server immediately crashes

So, I recently installed the tigervnc package on Arch Linux (uname -r 4.18.10-arch1-1-ARCH). I'm trying to get the VNC server to run trough SSH tunnels, so I'm starting the server on localhost only ...
1
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1answer
321 views

No module named 'gi' when running ibus-setup

I am trying to run ibus-setup and getting the following $ ibus-setup Traceback (most recent call last): File "/usr/share/ibus/setup/main.py", line 31, in <module> from gi.repository ...
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1answer
792 views

Connect directly to Xvnc started by xrdp

There're color artifacts when connecting from Windows remote desktop client to Xrdp on a CentOS box. I want to check whether the underlying Xvnc will have same artifacts. Xvnc is running: LISTEN ...
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0answers
55 views

Sending mod key over VNC

I'm running dwm on my local machine and I'm trying to control a machine running xmonad over VNC. They both use the same mod key because they're both my machines. How can I send the mod key to the ...
0
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1answer
22 views

VNC server configuration

what's the role of percentage in VNC configuration? ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :' ExecStart=/usr/sbin/runuser -l <USER> -c "/usr/bin/...
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1answer
18 views

Unable to connect to vncserver

Just trying to figure out the problem with vncserver here. It looks like it is only listening to local host and hence keeps giving this message No matching security types when I try to access this ...