It usually takes a little longer to install and configure this, but this technology is worth a closer look and is worthwhile. The advantage of open-source firewalls is that it is completely free and there are no verifiable backdoors because the open-source firewall code is known and has a good reputation. Although our operating systems come with some kind of firewall software, however, they are not enough to protect each device of a network. We need a well-configured Firewall, which is a key component of network security when we are about to expose our internal network to the outside world. In this article, we will discuss some best-known open-source firewalls based on Linux to protect networks and computers from cyber security threats.
To save our system from the outside world, we need a dedicated software platform called “Firewall”.
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