Therefore, we must ensure that they are activated in UFW and check whether UFW supports IPv6 and IPv4 firewall rules or not. IPv4 and IPv6 are the main ports that must be enabled. We start the steps of setting up the UFW firewall by updating the Debian repository: sudo apt updateĭebian does not include the UFW firewall by default, so you need to install ufw debian 11 using the apt command: sudo apt install ufwĪfter installing UFW, it is time to enable it, but before enabling UFW, you need to make some settings. Installation steps of UFW firewall in Debian 11 Step 1. To configure and run the UFW firewall in Debian 11, you need a Linux VPS running the Debian operating system in addition, you must have sudo non-root user privileges to execute the instructions. So stay with us until the end of the article. The Debian operating system is one of the most popular and famous Linux distributions, and you are well aware of features of Debian Due to the widespread use of Debian and the interest in using the UFW firewall on the Debian operating system, we decided to teach how to install and set up the UFW firewall on Debian 11 in this article.

Therefore, many users seek to install and configure UFW firewall on many Linux distributions. As a result, UFW plays a management role by monitoring network connections.Īmong the best Linux firewalls, UFW is preferred by most Linux users due to its great role in improving Linux server and system security. It means that users can define certain connections as allowed in their firewall and allow only those connections to access the network or apply restrictions on incoming and outgoing connections. UFW is the best alternative to configure iptables, which have a relatively complicated syntax.īy using UFW, in addition to restricting network connections, it is also possible to block the network. UFW, which stands for “Uncomplicated Firewall”, is a firewall software that runs on Linux to manage and monitor iptables and set rules in “iptables”.

To prevent unsafe and unwanted traffic to the network, users can set rules in the firewall to limit or allow specific traffic. Linux users commonly use firewalls to improve the security of their Linux system, as you know, firewalls control network connections and incoming and outgoing network traffic.

Debian firewall