[enable/disable firewall on Ubuntu 20.04 (UFW)] #ubuntu

sample.md

$ sudo ufw status

• As seen here, our firewall is currently active (on). For more detailed output regarding your current firewall settings, add the verbose option:

$ sudo ufw status verbose

• To disable the Ubuntu firewall, execute the following command:

$ sudo ufw disable

• If you decide you need to enable the Ubuntu firewall again later, you can run the following command:

$ sudo ufw enable

• To control ufw via GUI, you need to install the gufw package with the following command:

$ sudo apt install gufw