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In this lecture I'm going to show you how to verify and install the teller browser on a Linux computer.
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If you have a Windows or an Apple OS X system then please go back to the previous lectures where I show
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how to do this in details for these operating systems only watch this lecture.
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If you want to learn how to install the Tor browser on Linux otherwise skip it and you won't lose any
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information.
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You can continue from the next lecture where I'm gonna show you how to use detailed browser.
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So the instructions that I'm gonna show you right now will work on most Linux this throws like fedora.
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Debian and KDE but I'm going to do it from your wound too because this is the most popular one so the
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first thing that you want to do is go to the tour browser download page that I have right here and I'm
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going to include its links in the resources of this lecture.
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You want to scroll down to where you have the downloads for all the operating systems and this time
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we want to install it on Linux so I'm gonna go here to the right where it says Linux and I'm gonna download
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the first one because this is the English version.
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Now I have the 64 bit computer so I'm going to click on the 64 bits and this will allow me to download
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the third version for Linux for 64 bit computers I've already downloaded this right here.
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As you can see in my downloads so I'm going to cancel this and once you have downloaded all you have
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to do is really extracted and run the binary that will run the browser for you.
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But before doing this it's a really good idea to verify that the file that we just downloaded right
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here has not been modified as it was being downloaded.
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Because when you download something from the internet it passes through a number of nodes and it can
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actually be modified by your Internet service provider by your network admin or even by hackers.
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If they manage to intercept the connection.
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So what I want to do right now is verify that the file that I just downloaded did not get modify as
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it was being downloaded from the tower Web site to do this.
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We're going to use a signature file provided by toward developers.
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So as you can see on this page each download has a sig this sig stands for signature.
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And this is a file that is unique to this download to the installer.
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It was generated by the developers when they packaged the installer and it can be used to verify that
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the installer did not get modified since it was packaged by the developers.
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So to verify the installer the first step is to download its signature.
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So like I said as you can see each file has its own signature.
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I downloaded this file right here so I'm going to download this signature and here I'm going to right
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click the signature save link us to save it.
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And I'm going to choose where I want to download it and I'm going to keep it in my downloads so I'm
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going to click on Save and as you can see I have it right here that has a dot a C extension.
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Now before we can use this file to verify the installer we need to import the key of the Tor developers.
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So yeah we're gonna go to the TOR verify page and this is the key of the third developers right here.
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So what we're going to do is we're going to import this key using the GPL command.
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We're saying that we want to import a key from this server.
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And we're giving it the server that we want to get the key from.
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And then we're using the receive key argument to receive this particular key.
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So I'm literally going to copy this command and paste it here.
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And when you run this command give it some time and might actually take up to a minute or two and it
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might fail once or twice.
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So keep trying it until it works.
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The reason why it might fail is because maybe at the time of you trying this command these servers would
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be under a lot of pressure but as you can see it works for me in a relatively short period of time and
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I managed to import the key.
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As you can see in here.
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So now we can actually go ahead and verify the installer but before I do this I want them double check
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and make sure that I imported the correct key so to do this I'm going to use the G.P.S. command again
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and I'm going to say I want to get the fingerprint
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of the key that I just imported.
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So the fingerprint of this key right here again I'm gonna copy it.
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Paste it here.
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This command will give me the fingerprint of the key.
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And we're going to compare this to the fingerprints that we have in here and as you can see they're
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identical.
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And because they are identical.
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This means that we have imported the correct key.
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So the last step now is to use the signature file that we downloaded right here to verify and make sure
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that this installer did not get modified so before we can do that we'll need to first navigate to where
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the installer and the key file are stored.
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And as you can see they're stored in my downloads directory.
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So right now if I do Pete WD on my terminal you'll see I'm in Holmes Zaid so I'll need to go to downloads.
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So I'm going to do C.D. downloads and now if I do Pete WD to get my working directory you can see I'm
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in home Z downloads and if I do l s to list all of the files and directories in the current working
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directory you'll see I have these two files right here which are the same files that I have in here.
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So right now I'm basically in the downloads using my terminal.
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So all I have to do right now is verify this signature.
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So we're going to say gee PGE again the same command that we've been running and we're going to say
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I want to verify and give it the name of my signature file which is this file right here
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I'm going to hit enter on perfect as you can see it's telling us that this is a good signature from
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the Torah browser developers.
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So basically what this means is it means that this signature right here the Torah browser package that
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we just downloaded right here has not been modified ever since.
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This signature was made and we know that this signature is valid because we got the signature from the
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third download page and we also validated the toward developer key is using the instructions from here
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so we can ignore the warning here.
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The warning here literally just saying that G is not able to validate the signature creator so it wasn't
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able to validate the creators of tau but we know that these signatures are valid because we verified
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their key with the instructions that we saw in here and we validated the signature that we got from
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their web page.
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So now that we are happy that this package has not been modified ever since it was packaged by the third
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developers we can go ahead and uncompressed it.
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So I'm gonna right click it extract here and we have the package content right here and if we navigate
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inside this we have the browser and this is the binary that you want to run in order to run the browser.
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So I'm going to go back to my terminal right here.
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I'm going to clear the screen and keep in mind in my terminal if I do P.W. deep already in my downloads
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directory.
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So if I do Elyse you'll see the directory that was just created when we uncompressed the package so
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we can navigate into this by doing C D Tor Browser Linux the whole thing you can actually use the top
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two autocomplete I'm going to hit enter and I'm inside this directory right here.
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The next thing I need to do is to go inside this directory.
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So again if I do less you'll see we have one directory in here.
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So we're going to do see the Tor Browser E and U S again.
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If I do allows it to list all the files and directories and similar to what you see in here we have
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the browser on the start tor browser the desktop.
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Note that this right here is in green.
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This means that this is an executable so we can run any executable in Linux by doing that forward slash
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followed by the executable name which is start tor browser the desktop.
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I'm going to hit enter to run this executable and this will launch the Utah browser for me as you can
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see.
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And in order to connect to the tour network all I have to do is just click on Connect here this will
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connect to the tour network.
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It will configure the browser to send all data through the Tor network.
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And as you can see I'll get a Firefox window browser similar to Firefox.
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But like I said any Web site that you'll go to through this browser will be loaded over detour network
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so that's it for this lecture right now.
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We managed to install the Tor browser on linux using a clean and unmodified package.
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Don't worry about how to use it or browser and about its settings.
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We will talk about that in the next lectures.
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