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UFW Firewall and how to use it! So today we will talk about UFW (Uncomplicated Firewall) which is the most commonly used firewall and is shipped with most distros or can easily be downloaded from their repositories…. We will discuss each step so you can setup and secure your computers and be able to check its operation and learn to block unwanted intruders into your system. When your dealing with firewalls the base premise is that you want to block all ports to your computer/network and only open a port when required…. Leaving any ports open which are not needed is largely irresponsible and highly unadvised….. Step One (Lets get it) To Install UFW in linux is very simple. I use Fedora but I guarantee any other distribution you use will also have UFW in their repositories or is already installed on your system Sudo dnf install ufw Step 2 (lets reset it) Always reset your firewall before beginning a new configuration Sudo ufw reset Now ufw will be returned t...