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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2 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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0answers
8 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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0answers
18 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
8 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
175 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
16 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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0answers
21 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
123 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
49 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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0answers
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, ...
3
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0answers
30 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
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 ...
4
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1answer
76 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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0answers
61 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
214 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
84 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
50 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
149 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
57 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
82 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
148 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
27 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
51 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
175 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
70 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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0answers
335 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
18 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 ...
1
vote
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
29 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
60 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
30 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
70 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
votes
0answers
1k 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
89 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
443 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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0answers
262 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
549 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
46 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/...
1
vote
1answer
17 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 ...
0
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1answer
111 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
279 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=...
2
votes
1answer
40 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
46 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
135 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
454 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 ...
0
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1answer
111 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 ...
1
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0answers
24 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 (...
1
vote
1answer
207 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 ...
