#Firewall #Debian #UFW Full steps can be found at https://i12bretro.github.io/tutorials/0821.html -------------------------------------------------------------------- What is UFW? -------------------------------------------------------------------- The Uncomplicated Firewall (ufw, and gufw - a Graphical User Interface version of the same) is a frontend for iptables and is particularly well-suited for host-based firewalls. Ufw provides a framework for managing netfilter, as well as a command-line interface for manipulating the firewall. - https://wiki.debian.org/Uncomplicated%20Firewall%20%28ufw%29      01. Log into the Debian device    02. Run the following commands in a terminal window:          update software repositories          sudo apt update          install ufw          sudo apt install ufw -y          enable ufw          sudo ufw enable          output the ufw status          sudo ufw status          add some default firewall rules          sudo ufw default deny incoming          sudo ufw default allow outgoing          if a webserver is running, allow the incoming traffic          sudo ufw allow 80/tcp          sudo ufw allow 443/tcp          to allow incoming ssh connections, open port 22          sudo ufw allow 22/tcp          output the ufw status          sudo ufw status          to install a graphical user interface for ufw, install gufw          sudo apt install gufw -y   Connect with me and others ### ★ Discord: https://discord.com/invite/EzenvmSHW8 ★ Reddit: https://reddit.com/r/i12bretro ★ Twitter: https://twitter.com/i12bretro