Learn Ethical Hacking Episode #20: Virtual Private Network (VPN) Setup (Part 1)

 

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Hello everybody and welcome to this tutorial. Today, I am going to introduce you to VPNs, or virtual private networks, and how you can actually connect to them.

If you try to connect to one here, open up your VPN connections here and say configure VPN, you will see that all of the options are unavailable. You will get an error message saying, no VPN plug-in available. Please install one to enable this button. First, we will need an internet connection in order to install these plugins, and if you are on an unsafe connection, or something like that, I would definitely not recommend doing this. Instead, do it from your home network. Install all of the plugins, do all of the necessary prep work, and then you can connect to the VPN of your choice through some other network. In any case, just go ahead and close the network manager. If I hover my mouse over it, it says wired network device not managed. This can present a bit of a problem, so let’s just go ahead and solve that. It’s a relatively easy fix. Go ahead and type in nano /etc/NetworkManager/, with a capital N, and, again, NetworkManager.conf. This is the configuration file for our network manager, and you see here it says managed=false. Let’s replaces this with true, and that’s going to be it. Ctrl + O to save it, Ctrl + X to exit. You will need to restart the network manager in order to apply the updated configuration. So, just type in service network-manager restart. Linux is case sensitive. So, for example, touch test and Test, and if I created these two files they would be completely different. I felt like I should mention that somewhere here as it can be useful, and there we go it says, Wired Network Ifupdown (eth0). Now the interface is managed, so this should work now. Let’s just go ahead and clear the screen.

I have a small file here, it’s basically a list of commands for things that we need to install. I figured it would save some time by writing them down here, and not writing them manually during the tutorial. We’re going to need a few additional plugins for our network manager. What we will need is open VPN and pptp, but I’m just going to go ahead and install the rest as well. So let’s just add the -y so we are not prompted with any questions during the setup process. I could actually do one more thing, so let’s see if we can have them all done in one line. So type in apt-get install, and we can just copy these package names. The amount of y’s that I’ve passed there was unnecessary, but perhaps if I had done it in a different way it would have made a difference. I can pass one -y at the end of this long command because I’m just going to list the packets that I wish to install, and it should work without any problems. So, what is the last one? I need network manager vpnc as well, so let’s just go ahead and paste that here. The last one is the gnome extension, of course, for the GUI. Paste it, pass -y at the end, press ENTER, and there we go. It’s going to proceed on with the installation. There’s going to be a lot of new packets installed. They’re pretty small as they are plugins, so they shouldn’t actually take too much of your hard-disk space, or anything like that. The installation process is fairly fast, this will not take a lot of our time, but you see at the end it actually, well not at the end, but it is restarting the network manager. I will perform an additional reset at the end to cofirm that everything is up-to-date. Actually, it did it by default which is very nice. So, just by stopping and starting the network manager, it’s actually loading up the new configuration, and it seems to be working just fine.

So we no longer need this set of commands. As you saw, you don’t need to actually use every one of these individually. You can just issue one apt-get install command, and then type in all of the packets that you wish. So let’s just go ahead and minimize this, as I’m not gonna need it now, and I can click on add. When I click on add, I will get a list of possible VPN connections that I can use here. I’m just going to stop the tutorial here. In the next one we will have a lot of work to do. We need to go onto a website, find a suitable VPN, and test them out. See how good they are, and see what sort of IP addresses we can actually get from them. In any case, I bid you farewell, and I hope to see you in part 2.

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