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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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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
26 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
33 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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8 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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0answers
29 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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0answers
32 views

Do SPICE, XPRA and VNC work as alternatives to each other?

Do SPICE (https://spice-space.org/ and https://en.wikipedia.org/wiki/Simple_Protocol_for_Independent_Computing_Environments), xpra and vnc work as alternative to each other? Thanks.
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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
61 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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28 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
81 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
61 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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0answers
33 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
64 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
31 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
76 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 ...
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1answer
88 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 ...
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1answer
26 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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0answers
33 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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0answers
113 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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0answers
38 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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171 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. ...
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1answer
15 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
908 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
23 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 ...
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1answer
36 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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0answers
22 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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0answers
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
53 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
976 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
88 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 ...
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1answer
306 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 ...
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0answers
218 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
396 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
33 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 ...
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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
13 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 ...
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1answer
88 views

Scientific Linux / CentOS Screen sharing

we have Scientific Linux 7 PCs. At one of them I cannot activate the "screen sharing" under "Settings"- "Sharing". I tried to disable / enable the "sharing". I can activate and deactivate the ssh but ...
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0answers
245 views

How to setup keyboard switching in Tigervnc via Remmina Remote Desktop

I am running VNC server on a headless Ubuntu box with tigervncserver. ~/.vnc/config is all commented and has the following examples: # securitytypes=vncauth,tlsvnc # desktop=sandbox # geometry=...
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1answer
38 views

How can I monitor, record and check about the ports on my LUbuntu having been scanned or connected to by other computers?

I have installed some servers on LUbuntu 18.04, such as postgresql server, mysql server, vino server, and I may have installed and run some servers without knowing it. I rarely intend them to be ...
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1answer
40 views

Expose VNC port when building via VMWare Workstation

I am performing a remote headless build on a Ubuntu 16.04.05 server using packer. When the build starts, I get the informative message vmware-iso: The VM will be run headless, without a GUI. If you ...
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0answers
88 views

unable to display turboVNC

I'm trying to use turboVNC for remote application. I have install virtualGL package (virtualgl32_2.6_amd64.deb) and then turboVNC (turbovnc_2.1.90_amd64.deb). I'm using Ubuntu 16.04 LTS Processor :...
2
votes
1answer
306 views

VNC clipboard not working

If I uncomment the two lines in my ~/.vnc/xstartup that enable 'normal' desktop environment for VNC, the vncconfig -iconic & command is ignored: #!/bin/sh # Uncomment the following two lines for ...
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1answer
89 views

How to install vncserver with a password?

I am trying to install tigervnc-server from a bash script with a password under Centos 6. I want to do this because I want to automate VPS installations. Does anybody know how to do this? Tried adding ...
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0answers
22 views

How to add my computer to a team with RealVNC? [closed]

I just want to add my computer to my RealVNC account, so that I can login and remote my computer from other devices. On my desktop (Windows), after install VNC Server, I can do this but on my laptop (...
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1answer
171 views

Maximized window bigger than display on CentOS 7.5 with vncserver

im running into a problem on a CentOS 7.5 machine with the default vncserver (TigerVNC). Everything is working fine, except one visual flaw: the maximized size of the display is unequal to the actual ...
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1answer
369 views

vncserver blank display — debian 9 guest VM w/ubuntu 16 host

Overview My goal is to setup VNC access to a Debian 9.5 VM guest built with virt-manager on Ubuntu 16.04 LTS (with desktop environment). I have configured /etc/vnc/xstartup to use gnome-session (...
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0answers
124 views

Pipe VNC viewer output to /dev device

Using VNCTiger as a VNC viewer, how can I pipe/forward (correct terminology?) the output to one of the /dev devices like video0? At the moment I use a basic vncviewer command to get the output, as ...
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1answer
97 views

Can't change keyboard layout inside vncserver

How to change keyboard layout inside (tiger) vncserver? I am running startxfce4 inside it. I can show country flag in the corner and switch layout by clicking on it, but I can't switch by keyboard ...
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0answers
783 views

Black Screen on VNC (SUSE Linux)

I used to be able to connect to my server using a VNC Client. However, now the window will open but is (and stays) black. I can SSH to my server. I restarted vncserver with no effect. I used cat on ...
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4answers
306 views

Best practice DNS (resolving IP to hostname in LAN)?

Recently I've created my own thin client operating system (Xubuntu based, so basically Linux yes) that will run across our thin clients. Currently I'm testing the OS in my test environment, but I've ...