OK so we're going to pick up from where we left in the previous lecture.
And in this lecture I'm going to continue showing you the basics of tells how to see the notifications
how to edit some of the settings connect to networks and so on.
And going back to the status bar we have the time and the date in here.
Now if you also click on this you'll get a nice calendar on the right and you'll also get the notification
menu in here in which you'll see a list of system notifications continue into the right.
We have the onion icon right here which shows us the status of the tour circuit.
Now if you're not connected right now you should see an X beside it.
Don't worry about that.
We'll talk about this in a minute.
Besides if you have the accessibility options again options to zoom in zoom out increase contrast stuff
that'll just make it easier to use the system.
We have the language selector in here you can change the language if you wanted to.
You can click on Show keyboard layout if you wanted to add more languages now going to the last icon
in here you can see the first thing we have is the volume controls.
You can also see it saying why it connected.
This is because I have an Internet cable connected to this computer.
That's why I have this computer is get an internet connection.
This is the easiest way to get internet connection on tells.
If you don't have an ethernet cable.
You can also connect using Wi-Fi.
Now keep in mind you'll only see this option the Wi-Fi option if Thales supports your Wi-Fi card or
if it supports the wireless adapter that is connected to this computer for example.
It actually was not able to detect my built in Wi-Fi card and the only reason why I have this option
here because I have an external U.S. be wireless adapter connected to this computer.
So if you can't see the Wi-Fi option here it's probably because the Wi-Fi card used in your computer
is not supported by tells.
I'll include the list of all Wi-Fi adapters supported by Thales and the resources of this lecture.
Once you see this option connect into a Wi-Fi network is trivial all you have to do is just click here
click on select network select the network that you want to connect to put the password and you'll be
able to connect and finally you can also see the power settings in here of this computer at the bottom
here we have a number of icons.
The first one here will take you into the preferences.
So I'll just click on it quickly to show you.
And here you'll be able to change settings about the operating system such as the background display
privacy settings language settings and so on.
Keep in mind right now our installation is not persistent.
So anything you do will be lost as soon as you turn off this machine or restarted.
We will talk about persistence later on in the course.
So you should keep this in mind when change in settings.
Going back to the top right icon.
We also have the lock icon in here which will lock this computer.
Now keep in mind we started this session without a password.
Remember the admin password was disabled.
Therefore when you click on this it will actually ask you for a password to set so that you can use
that password to unlock the screen again.
So let's say I put a password here and then lock the screen.
Now when I come back hit enter and to log in now to my session.
I'll have to use the password that I just set.
Keep in mind this is not an admin password.
This is literally a password that we temporary set when we lock the screen.
You can also pause the current session.
You can restart or shut down using these buttons.
Now the really cool thing about tells when you click on shut down or when you just disconnect the USB
device that contains tales it will automatically shut down securely.
What I mean by that is as we mentioned before tales never uses the built in storage of the computer
that you run it on.
It runs completely from RAM.
This means that once you turn it off it leaves no traces because Rahm gets cleared every time you turn
off the computer or restarted.
Now this is all good but it actually takes a number of minutes sometimes even up to four or five minutes
to completely clear the ram.
Therefore if you just shut down the computer and someone grabs your computer freezes their arm.
This ram will still contain information about your session and that way they'll be able to store your
arm for a long period of time as long as it's frozen and then they'll be able to inspect it and get
information about what you did while you were using Thales.
Therefore when you actually click on shut down or disconnect the US device Thales will perform a secure
shutdown in which it will wipe the Iran before it completely shuts down.
Therefore if someone gets your computer and freezes their arm there will still be no information about
you because Thales completely and properly cleared the RAM before it went off before it shut down.
So this is a really really cool feature to prevent called Booth attacks.