Connecting wifi ubuntu server. Installing a Wi-Fi adapter in Ubuntu

Greetings to all!
In this article I will tell you how to connect to an active Wi-Fi network in Linux Ubuntu. And also how to set up and use it most safely this type network connections.

Now a little theory.
At using Wi-Fi in any OS, including Linux Ubuntu, all information is transmitted via radio waves. This makes Wi-Fi networks much more vulnerable compared to wired networks. The fact is that the radio signals sent by the access point (Wi-Fi router) and devices that are connected to the access point are available for interception by any similar device that is within the “visibility” radius from the access point to the client of this access point. That is, interception network traffic becomes very simple, accessible and invisible. And intercepting network traffic allows you to collect the information necessary to attack a Wi-Fi network and hack it in the future. As there are more and more Wi-Fi access points, and the number of people who want to “hack” the Wi-Fi network.

One common motivation for hacking access points is free connection to the Internet. A fairly common picture today is that you have a Wi-Fi router installed in your apartment and not only your devices are connected to it, but also the devices of some of your neighbors. You pay for the Internet, and your tech-savvy neighbor gets the Internet for free.

It also gets access to all devices that are connected to your Wi-Fi router. This gives him the opportunity to steal your personal data, for example, passwords for email, various accounts, including online banking. In a word, to everything you own.

To reduce the risk of your Wi-Fi network being hacked on Linux Ubuntu and other operating systems, you need to configure the network and follow certain rules.

Do not connect to open public Wi-Fi networks through devices on which you store valuable information. And if you need access to the Internet via Linux Ubuntu or any other networks open networks Wi-Fi, then use a configured firewall and antivirus on your laptop or tablet.

If you use a Wi-Fi router at home or in the office, you need to configure it correctly:

At initial setup router, you need to change the administrator password, and not leave the default one.
Use WPA2 security type.
The security password must be long - preferably more than 8 characters, and must consist of a random set of characters. The password qwerty1234 is very bad - it can be hacked in a few minutes. Password y57k-S)