However, prebuilt firewalls have limited functionality, and it helps to have a utility that sits on top, allowing you to configure and manage the firewall’s filtering rules. Now that you know what a Linux firewall solution is and its top features, let’s explore some of the best offerings in 2021.Īlso Read: What Is Content Filtering? Definition, Types, and Best Practices Top 10 Linux Firewall Solutions in 2021Īs mentioned earlier, all Linux distributions ship with prebuilt firewalls, and technically you could do without installing any additional firewall solutions on your Linux system. VPN, bandwidth optimization, content filtering, network usage logs, and intrusion detection are some add-ons to look for. Non-firewall capabilities : As Linux already comes with a robust firewall service of its own, the solution you choose should also include non-firewall network management and security functionalities.This will be a determining factor for enterprise purchases more than for standalone use, where the network environment is mainly static. Range of configurations : The Linux firewall solution must offer the broadest possible range of configurations, such as time-bound security policies, custom network zones, user-specific security configurations, and so on.Check for compatibility with your existing public cloud providers, the investment needed if you want a new hardware shell, and implementation support. Hosting environment : If you opt for the second option, i.e., a standalone solution, the hosting environment makes a massive difference.Check for community activity on GitHub, the number of releases in the last few years, and options to avail of (and contribute to) community-led support. Developer community : Linux firewall solutions have an open-source bedrock, so a larger community is always helpful. ![]() GUI interface, simple command-line controls, and remote web portals are some factors to consider. ![]() Linux’s pre-built firewall solutions are extremely competent, so a big reason for installing an additional firewall is the user experience and convenience it provides.
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