Using Firewall With UFW in Ubuntu Linux [Beginner’s Guide]
UFW (Uncomplicated Firewall) is a simple-to-use firewall utility with plenty of options for all kinds of users. It is actually an interface for iptables, which is the classic low-level tool (and harder to get comfortable with) to set up rules for your network. Why should you use a Firewall? A firewall is a way to…