Firewall is an important tool for any operating system these days, especially due to threat of hacking on a compromised computer. Ubuntu and its derivatives like elementary OS and Linux Mint comes builtin with the strongest firewall called “ufw”. However for whatever the reason the Firewall is disabled by default settings. Although, there is no need to have Antivirus on Linux, I recommend to always enable Firewall on Linux too.
Install graphical interface for Ubuntu’s built-in Firewall ufw
STEP 1: Go to ‘Applications’ and launch ‘Terminal’.
STEP 2: Type the following command and hit enter. You will have to enter root password to begin installation.
sudo apt-get install gufw
STEP 3: After installation is complete, launch it from the Applications search. Search for ‘gufw’ or ‘firewall configuration’. Both the searches should show ‘Firewall Configuration’.
STEP 4: Toggle the Firewall status to ‘ON’. You have actually enabled the firewall now.
STEP 5: The firewall configuration resembles features seen in firewall software for Windows. You can set the profile ‘Home’, ‘Public’, and ‘Office’.
STEP 6: Click on a little + icon in the ‘Rules’ section to add ‘Allow’ and ‘Block’ rules to applications.
STEP 7: Other features include live network listening report and log.
Did you like the default built-in Firewall? Let us know in comments below.