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OK so we're going to pick up from where we left in the previous lecture.

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And in this lecture I'm going to continue showing you the basics of tells how to see the notifications

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how to edit some of the settings connect to networks and so on.

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And going back to the status bar we have the time and the date in here.

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Now if you also click on this you'll get a nice calendar on the right and you'll also get the notification

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menu in here in which you'll see a list of system notifications continue into the right.

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We have the onion icon right here which shows us the status of the tour circuit.

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Now if you're not connected right now you should see an X beside it.

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Don't worry about that.

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We'll talk about this in a minute.

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Besides if you have the accessibility options again options to zoom in zoom out increase contrast stuff

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that'll just make it easier to use the system.

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We have the language selector in here you can change the language if you wanted to.

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You can click on Show keyboard layout if you wanted to add more languages now going to the last icon

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in here you can see the first thing we have is the volume controls.

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You can also see it saying why it connected.

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This is because I have an Internet cable connected to this computer.

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That's why I have this computer is get an internet connection.

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This is the easiest way to get internet connection on tells.

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If you don't have an ethernet cable.

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You can also connect using Wi-Fi.

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Now keep in mind you'll only see this option the Wi-Fi option if Thales supports your Wi-Fi card or

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if it supports the wireless adapter that is connected to this computer for example.

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It actually was not able to detect my built in Wi-Fi card and the only reason why I have this option

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here because I have an external U.S. be wireless adapter connected to this computer.

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So if you can't see the Wi-Fi option here it's probably because the Wi-Fi card used in your computer

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is not supported by tells.

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I'll include the list of all Wi-Fi adapters supported by Thales and the resources of this lecture.

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Once you see this option connect into a Wi-Fi network is trivial all you have to do is just click here

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click on select network select the network that you want to connect to put the password and you'll be

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able to connect and finally you can also see the power settings in here of this computer at the bottom

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here we have a number of icons.

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The first one here will take you into the preferences.

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So I'll just click on it quickly to show you.

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And here you'll be able to change settings about the operating system such as the background display

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privacy settings language settings and so on.

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Keep in mind right now our installation is not persistent.

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So anything you do will be lost as soon as you turn off this machine or restarted.

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We will talk about persistence later on in the course.

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So you should keep this in mind when change in settings.

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Going back to the top right icon.

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We also have the lock icon in here which will lock this computer.

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Now keep in mind we started this session without a password.

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Remember the admin password was disabled.

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Therefore when you click on this it will actually ask you for a password to set so that you can use

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that password to unlock the screen again.

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So let's say I put a password here and then lock the screen.

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Now when I come back hit enter and to log in now to my session.

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I'll have to use the password that I just set.

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Keep in mind this is not an admin password.

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This is literally a password that we temporary set when we lock the screen.

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You can also pause the current session.

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You can restart or shut down using these buttons.

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Now the really cool thing about tells when you click on shut down or when you just disconnect the USB

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device that contains tales it will automatically shut down securely.

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What I mean by that is as we mentioned before tales never uses the built in storage of the computer

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that you run it on.

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It runs completely from RAM.

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This means that once you turn it off it leaves no traces because Rahm gets cleared every time you turn

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off the computer or restarted.

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Now this is all good but it actually takes a number of minutes sometimes even up to four or five minutes

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to completely clear the ram.

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Therefore if you just shut down the computer and someone grabs your computer freezes their arm.

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This ram will still contain information about your session and that way they'll be able to store your

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arm for a long period of time as long as it's frozen and then they'll be able to inspect it and get

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information about what you did while you were using Thales.

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Therefore when you actually click on shut down or disconnect the US device Thales will perform a secure

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shutdown in which it will wipe the Iran before it completely shuts down.

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Therefore if someone gets your computer and freezes their arm there will still be no information about

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you because Thales completely and properly cleared the RAM before it went off before it shut down.

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So this is a really really cool feature to prevent called Booth attacks.