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In this video, you'll learn about console redirection.

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VNC can be used for console redirection of a complete graphical console.

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And SSH port forwarding can be used to forward individual ports.

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SSH X11 forwarding is used to show a graphical application window on a current machine.

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And to use X11 forwarding, a local graphical server must be installed.

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On Linux, this is your regular graphical server.

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On Macs, XQuartz can be used.

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And on Windows, Mobile Xtrem provides easy SSH forwarding.

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If you want to do SSH forwarding, use SSH minus uppercase X.

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That enables X11 forwarding in a way that is subject to X11 security extension restrictions.

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SSH minus uppercase Y enables trusted X11 forwarding,

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which is not subject to X11 security extension restrictions.

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So your chances of being successful with SSH minus Y are bigger.

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To configure trusted X11 forwarding,

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you need to set the forward X11 trusted option in etc.ssh ssh-config.

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Set it to yes to give clients full access to the X11 display.

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Then you can also use SSH port forwarding.

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That is what is used to expose a remote port on a local port.

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Use for instance ssh-fnl4444-localhost22 root at remote host.

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Sounds like a complex command.

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What will it do?

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Well, it will log in as root on a remote host,

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and from there connect port 22 to port 4444 on localhost.

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If you want to test this, it's a good idea to use a third machine.

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Let me demonstrate.

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Okay, let me use SSH minus Y 192.168.29.145,

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and let's use gedit gnome-editor.

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So this is going to establish a remote connection over SSH,

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and oops, that's not going to be successful

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because SSH by default does not allow root access.

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So let me do it as user student at remote host.

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And these are your options for forwarding graphical applications.