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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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Installing of Novnc showing errors in kalilinux-rolling as XOpenDisplay failed (:0)

I have used the following commands to use novnc apt install lightdm sudo apt install -y novnc x11vnc sudo apt update && sudo apt install -y kali-desktop-kde when i run this command x11vnc -...
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How to open vscode in the current VNC display?

I have three VNC displays running - hostname:1 hostname:2 and hostname:3. I tried to open vscode in hostname:3, but it opens in hostname:1. Is there a way to open vscode in the current display without ...
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Virtual Display but with GPU/Hardware Acceleration

To do some automated screen recordings for promo videos of web applications I'm using chromium/selenium inside of xvfb to run the web application and ffmpeg to record the video. Even tough this looks ...
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How to run VNC as a System Service on 64-bit Arm?

I'm following this guide to setup VNC server in my Ubuntu arm64 machine (specifically, armbian 64-bit). There's one problem I found with it so far. When I start the VNC server using vncserver :1 -...
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Cannot suppress notification when a client connects to my vino server VNC

I am using vino-server in Bodhi Linux, an Ubuntu derivative which, in my experience, for most purposes (but not all) works the same as Ubuntu. When a client connects to my PC I get a notification. I ...
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Why VNC Client gives Too-Many-Authentication-Failures message despite Fail2Ban?

On server have fail2ban only and no ufw (this is deliberate and part of the spec). Have a specific jail for tightvnc-auth; and when I look at logs -- no failed connection attempts made. I do have ...
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Start vino-server automatically at startup

I am using Bodhi Linux, and vino-server in it. I can connect neatly from Win 10, following the same procedure I am used to do to connect to Ubuntu boxes. Now I want vino-server to start automatically ...
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X11VNC - connection failed due to incorrect password even though password correct

Running Xubuntu 20.04 as VM on top of Ubuntu Server 20.04 with bridged interface. I am able to connect to the VM via SSH (also using Putty on Windows 10 machine that will access the VM). Using ...
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bVNC refuses to connect to valid ssh port

I'm trying to connect to another machine (running Linux) on the same LAN (same 192.168.xx.xx network) with the latest version of bVNC on Android to VNC over SSH. I have the correct IP address and port,...
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How to configure ssh agent forwarding for vncserver correctly?

I am connecting to my host with localhost>ssh -A myhost this makes my locah ssh-agent to forward it's key to remote host. On remote host I can myhost>ssh -A myhost2 and it works. Now I run ...
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Cant connect to my tigervnc server hosted on Ubuntu 20.04.4 LTS

Did some basic debugging. VNC session is created vncserver -list TigerVNC server sessions: X DISPLAY # RFB PORT # PROCESS ID :1 5901 4479 Port 5901 is enabled in firewall sudo ufw ...
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How to install GUI on remote Linux server

I need to install GUI on a VPS Linux server. Service provider is Hetzner and Linux version is Ubuntu 18.04.6 LTS I'm using MobaXterminal for X11 forwarding. And I'm using root credentials. I have ...
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Install teamviewer for debian 9 cli only

Until now I used zerotier in order to reach a remote linux debian 9 machine that is a sort of vpn service, it assign you virtual router and you can add machines to it. Something got really strange ...
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Problems with icons, themes, nautilus on VNCServer after upgrade from Ubuntu 16.04 to 18.04

Problem: After upgrading one of my VMs from Ubuntu 16.04 to Ubuntu 18.04, I'm having various GUI problems on VNC server. Note: I was able to upgrade another VM, which is a 1 year old clone of this ...
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Vnc not working on fedora (tigervnc)

Vncviewer is always stuck on "detecting 4 decoder threads", I tried 3 servers (the official one using systemd, x11vnc, and krfb). Also using the official guide I adjusted the firewall.
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KDE Plasma over VNC on Ubuntu in Chroot on Android using Linux Deploy

As you can see form the title, I am running a weird setup. I am using Linux Deploy on my Android 11 to host an Ubuntu instance in a chroot environment, so that I can run full-fat Linux applications on ...
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Kill noVNC proxy

I want to close my noVNC port after use and I can't seem to do so without a reboot on my Ubuntu machine. I am able to stop the vncserver but the vnc.html on proxy is still accessible. In shorter words,...
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How to install minimal set of GNOME for VNC headless?

I have some headless machines, running Ubuntu or CentOS. What should I install, to have minimurequired things to run gnome-session from within VNC's xstartup? Looks like groupinstall "GNOME ...
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How to disable point to focus mode in twm?

I have installed simple twm to be able to run Android Studio on remote server. Unfortunately, it seems to me it works bad with point-to-focus mode in twm. Many windows in Android Studio are "...
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In a home network, how do I ssh from a client to a host connected to a VPN?

I have a Debian 11 box on my home network which I can ssh into and use vnc to access it like a regular desktop. I've installed a VPN on the host, but when I connect to the VPN on the host then logout ...
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TigerVNC not working on Fedora

using this guide: https://docs.fedoraproject.org/en-US/fedora/rawhide/system-administrators-guide/infrastructure-services/TigerVNC/#TigerVNC.adoc#configuring-vncserver and it's single user setup, at ...
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Unable to start Application with sudo when using VNC-Server

I have installed Ubuntu server 20.04 that normally runs headless (without X and DE). Here i have installed xorg, Xfce4 and TightVNC-Server and can connect to the Server from my normal Ubuntu. But i ...
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No input or output devices found when using vnc remote desktop

When I use a regular monitor, and connect my headphones to pc, they work just fine. But when I use my laptop as a monitor(I use tigervnc configured by this tutorial: https://wiki.archlinux.org/title/...
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How can I use a terminal within a Firefox tab?

I love the Tree Style Tab extension for organizing tabs in Firefox. In fact, I would like to use it to organize my open terminal windows too! I don't want to launch a terminal window from within ...
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How can I (safely) proxy from my computer through amazon workspace to VNC running on an EC2 instance I setup?

I'm am doing development for my company on a machine owned by the company I'm contracted to. Recently we have been pushed to use a more 'secure' environment built on top of/utilizing Amazon ...
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Screen sharing on Ubuntu doesn't start any vnc service - shall it?

I tried following many tutorials stating this is somewhat easy. But I couldn't make this work. Main goal: Control Ubuntu Desktop (current desktop! NOT a new one!) from a Windows client. So I enabled ...
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Faster alternative to vnc

I have a vnc server running on a macbook (the default one in sharing settings). I'm connecting to it using a linux computer on the same local network. It works but the performance is abysmal (2-5fps), ...
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prevent VNC-Session from using graphical.target | CentOS Stream 8 RHEL 8

I'm setting up a homeserver and I'm running into the following issue. using tiger-vnc using CentOS Stream 8 using root-user When I start the Server the still connected display shows the localhost ...
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10-key (numeric keyboard) not working when connected via VNC to Fedora 35 or Ubuntu 21. Both are using GNOME - is this a bug?

I use VNC (RealVNC "VNC Viewer" app) on my Mac to connect to Linux desktops: Fedora 35 & Ubuntu 21. They both are using GNOME desktop: 41.1 for Fedora, and 40.5 for Ubuntu I recently ...
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VNC access is not available (but SSH is) when conncted to VPN

EDIT: I tried setting up an ssh tunnel from PC1 to PC2 with $ ssh -L 5901:localhost:5900 PC2 and then connecting VNC with localhost:5901. This worked when PC2 was not connected to VPN, but the VNC ...
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Cannot connect to PC in the same network with activated VPN

I have two computers with Ubuntu 20.04, connected to the same router. I am running vino-server on PC2, and Remote-accessing it with Remmina from PC1. As soon as I connected PC2 to (Proton)VPN, the ...
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Ufw allow app: ERROR: Need 'from' or 'to' with 'app'

I am using Ubuntu 20.04.3 LTS, although this question is probably not specific to Ubuntu but to any system using ufw. I am setting up a rule for VNC vino connections. I meant to do that via a ...
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Gnome on Debian 10 not Showing any Taskbar in VNC

I have installed gnome on Debian 10 with the following command: sudo tasksel install desktop gnome-desktop I have configured VNC to connect to the VM, which is deployed on Azure. However, once ...
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Connecting to Lubuntu desktop via VNC

I have installed Lubuntu desktop on a Ubuntu 20.03 LTS server. The desktop works fine when I log on to it locally. I can see the SDDM and I can chose between various sessions for the desktop (Lubuntu, ...
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How to force user to change VNC password without leaving him any way to elude the rule?

I need to find a way to force all users to periodically change their VNC display password. I do the same thing for the users' linux credentials using chage command, and i noticed that when the user ...
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VNC black screen

I need to access an Ubuntu 18.04 EC2 using VNC. I did it successfully but unfortunately after sometime I got logged out and I couldn't log in again. I changed the user (root) password using sudo ...
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How can I switch (local) virtual desktops from a VNC fullscreen session?

My goal is to have my local PC apps on desktop 1 and a full-screen VNC remote session on desktop 2. I'm using KDE5 on both, with Ctrl-F1/F2 mapped to the desktops. OS is Tumbleweed if that matters. I ...
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VNC too many authentication failures error - Fail2ban

On a Debian 11 server with Xtightvnc, I am getting a lot of "too many authentication failures" messages. I would like to put fail2ban to block unauthorized users who try to login into my ...
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VNCServer fails to start with error: couldn't find "/bin/vncpasswd"

I'm using Linux with below specifications : Virtualization: VMWare Operating System: Oracle Linux Server 7.4 CPE OS Name: cpe:/o:oracle:linux:7:4:server Kernel: Linux 4.1.12-94.3.9.el7uek.x86_64 ...
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How to add X509 certificate TLS encryption in tigervnc in linux?

In tigervnc, how to add and deploy X509 certificate TLS encryption in linux environment?
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1 vote
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VNC / Ubuntu 18.04 / xfce4: can't launch executables with a GUI

I'm using VNC remote desktop to visually access a remote Ubuntu 18.04 machine with a xfce4 GUI. VNC works fine. SSH shell works fine. The 2 programs with a graphic UI I'd like to launch are nedit (a ...
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Centos 7 VNC xstartup multiple desktops MATE, KDE but can't get gnome-classic if DESKTOP=KDE

Rewriting to hopefully clarify the question. MATE, KDE and Gnome3 have been installed on some Centos 7 servers. So have a mix of users and ideally want to default to MATE desktop. Is there any way to ...
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How to mirror a screen in TigerVNC?

How to mirror a screen? I have an answer (VNC). A Linux VNC server - https://help.ubuntu.com/community/VNC/Servers.
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vncserver: No matching VNC server running for this user!

How can resolve the below error? [=] Kali NetHunter for Termux installed successfully [+] To start Kali NetHunter, type: [+] nethunter # To start NetHunter CLI [+] nethunter kex passwd # To set the ...
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X11 VNC server sleep problem Ubuntu 21.04

I have talked the default X11 VNC server on the Ubuntu 21.04. I made it run at start with the help of this link: X11 VNC Auto Start and Password configuration The problem is that after some time the ...
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Unvisible application content within VNC / XFCE

I do have a weird render issue of some applications that I'm running within a tigervnc session on a remote host where XFCE is started. As you can see from the screenshot, while applications display ...
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To write a bash script to determine if my VNC server is reachable using the VNC viewer ; if not,kill it and restart it

I done this tutorial several times : https://forums.developer.nvidia.com/t/tutorial-how-to-install-virtualgl-and-turbovnc-on-jetson-nano/175767/43 because I wanted to install turbovnc server + ...
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Where can I learn the syntax for VNC related commands and files?

This is really a question on learning strategy. I am new to Linux and seem to know only two strategies: Get a 500 page text book and plow through it. (I am plowing through a book on System ...
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VNC server on Debian laptop

I am trying to get a vnc server running on my old laptop, which has debian 10 freshly installed. I installed tigervnc-standalone-server, and it runs and almost does what I want. If I start VNC before ...
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VNC server full screen display is too small

On a centOS 7 remote server I have installed tigervnc. On Windows the viewer I am using is RealVNC Viewer. The configuration at /etc/systemd/system/vncserver@\:1.service [Unit] Description=Remote ...
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