Linux has a firewall to protect the operating system and its users from malicious attacks. The firewall is a set of rules that determine which traffic is allowed to pass through the system and which is blocked.
The firewall is enabled by default in most distributions, and it is important to understand how it works and how to use it to protect your computer. The firewall is a layer of protection that sits between your computer and the rest of the internet.
It can block incoming connections from unauthorized sources, such as unauthorized IP addresses or networks.
The firewall is also responsible for enforcing policies for the users on the system. For example, it can block access to certain applications or folders.
The firewall is also responsible for protecting the system from malicious attacks. If a hacker is able to gain access to the system, the firewall can prevent them from attacking other systems on the network.
Overall, the firewall is an important part of the Linux system. It can protect the system from malicious attacks and help to enforce policy for the users.
