You can’t connect to a VT if a user is active on the GVT. Or what he would see, if a screen were attached.Ĭonversely, that user (if present) will also see what you do. So, you will always see what the user in front of the Linux box sees. To reiterate: You will always be taken to the active VT (the thing you switch using Ctrl+Alt+F1…F12). Just after booting you’ll most likely be on VT1, if no X server is running on VT7. If you’re curious as to which VT you‘re currently on, try fgconsole. This is beyond the scope of this introduction, but if you feel adventurous, you can have a look at kernel mode setting and setting the resolution in text consoles as a starting point. On a truly headless machine you may want to change the resolution of the framebuffer. If a monitor is attached, it is usually the native resolution of the screen. TeamViewer connects to the active VT on the system – if you connect again, it will still have the contents, including command history, that you saw before.Īnother difference (compared to ssh connections) is that the resolution is that of the VT. They emulate a VT that only lives as long as the connection. And is different from, say, ssh connections. The active VT is the one that you see on the monitor - or would see, if one was attached. With headless support enabled, remote control connections will take you to the active VT. In this article, I will refer to a framebuffer as VT. It uses colored output and can display a penguin when booting the computer.Ī framebuffer pixel-based terminal also allows higher resolutions than the traditional 80×25 characters in text mode. Today, most distributions use a framebuffer console by default. Before Version 11, TeamViewer could only be used on the GVT.Ī framebuffer terminal (or console) is a pixel-based terminal, unlike the traditional character-based terminal. The graphical desktop environment traditionally runs on VT7 (Ctrl+Alt+F7). You can switch between VTs using the Ctrl+Alt+Fx shortcuts. The Desktop Environment is the graphical user interface (X server with KDE, Gnome, Unity…) where applications run.Ī Virtual Terminal (VT) provides an interface for the user to log in and work. Let’s first define some terms, just to make sure we’re talking about the same stuff… Once the simple setup is done, headless remote access is only a double-click away. TeamViewer Headless Linux support takes you directly to the terminal – also known as command line, shell, console or VT (virtual terminal). TeamViewer 11 for Linux introduces headless support - the industry’s first professional, easy remote access to headless Linux systems. But… still no success… something is still not working properly… Giving up. Just grab the packages of your favorite desktop environment and then start it… oh wait, what? X does not start? Complaining about the absence of a screen? Bummer. The first problem you may have encountered is that Linux servers often don’t have any graphical user interface installed by default. But if you’re more used to the convenience of a graphical user interface, you might have thought about (or dreamed of) administering your servers with TeamViewer. If you use lynx to browse the World Wide Web, you probably never thought about installing TeamViewer on a headless Linux server.
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