Learn Best Open Source Linux Firewall Software for Protecting Your Linux System and Server.
By filtering inbound and outgoing traffic, a firewall protects a computer network from various dangers. There are several useful open source security firewalls for Linux systems available for this purpose. However, Open Source Firewall does not imply that it is entirely free. Instead, it is given under a license that grants access to the source code to the user. Users can use this source code to create their firewalls or use the pre-built ones.
Furthermore, whatever the logic, an Open Source firewall will save you money over a commercial alternative. There are several Linux Firewall Software accessible for download on the internet. However, Linux users may have difficulty finding one because many Linux-based firewalls have ceased operations. So, I’ve compiled a list of the top open-source firewalls for Linux users to assist you.
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10 Best Free Firewalls for Linux Distro in 2022 (Open Source)
Here is the Linux firewall list of the best Linux firewall solutions or open-source Linux firewalls in 2022
1. IpCop Firewall
IpCop Firewall is the best Linux Firewall Software for allowing flexibility and scalability in the firewall ruleset. It is nearly identical to Iptables and may be used interchangeably, although IpCop Firewall has far more robust functionality than Iptables.
Additionally, this Firewall’s sophisticated capabilities include a network-specific virtual machine, improved performance via maps and connotations, etc. This best Linux open source firewall for cyber security also has a uniform and consistent syntax to support the protocol.
2. UFW
Next in our list of the best Linux Firewall Software is UFW. If you are new to using a Linux-based firewall, the UEF w is an excellent choice. UFW’s key features were IPv6 support, status monitoring, etc.
Besides, this best open source firewall for 2022 also allows the user to create, remove, or change Firewall rules. UFW also includes GUI and GUFW for Ubuntu & Debian users.
3. Shorewall – Iptables Made Easy
Are you seeking for the best Linux firewall solutions? Free and open-source Linux firewall Shorewall or Shoreline is another popular and well-known Linux Firewall Software. This firewall protection is provided by an iptables/ipchains Netfilter system incorporated into the Linux kernel. IPV6 support is also available.
Furthermore, if you have problems setting rules or using the Firewall, Shorewall is an alternative to Iptables. This open-source firewall Linux can run a variety of gateway, router, and firewall apps.
4. Iptables
If we talk about the top-notch Linux Firewall Software, the most well-known name in the Firewall domain is Iptables. It is this type of firewall that allows you to rearrange rulesets. Because of its efficiency and adaptability, most skilled Linux administrators rely on this terminal-based Firewall. However, this does not preclude inexperienced users from using it.
Besides, this best open source firewall have unique features such as a packet filter ruleset, the implementation and inspection of a packet header for quick output, a customizable ruleset, etc. It may also be used to backup and restore data.
5. OPNSense
It is another easy-to-use and easy to build Linux Firewall Software based on Hardened BSD. The majority of the premium security features in OPNSense are free. Furthermore, the Firewall is updated weekly to ensure that no flaws or weaknesses are left behind.
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In addition to the normal functionality, some offensive features include forward caching proxy, traffic shaping, intrusion detection, and VPN. Its solid construction and numerous features make it one of the most appealing firewalls for Linux users.
6. Endian
Are you seeking for the best Linux Firewall Software for protecting your Linux system and server? Endian is a high-security firewall that provides total network security and packet inspection. Additionally, the Endian creators claim that the Firewall can transform a basic machine into comprehensive security, spam alert, etc. Consequently, users have assured network security, spam alerts, and so on. Furthermore, users have been offered online security through a URL blocklist.
Moreover, some of the endian’s best-in-class capabilities include real-time network monitoring, bidirectional network security, spam alert, etc.
7. Firewalld
If you are looking for the highly-rated and best open source firewalls for Linux, then Firewalld is a perfect choice. The RHEL, CanvO S, SUSE, and OpenSUSE default Firewall management tool is used. Firewalld is a popular firewall among Linux users that supports dynamic networks. The Firewall’s user interface is simple.
Further, Firewalld’s key features are D-Bus API, IPV4, IPV6, bridge, and IPset support. Furthermore, it enables configuration via the firewall end terminal.
8. IPFire
IPFire is a perfect choice if you need an easy-to-use Linux Firewall Software for a small office or personal use. The Firewall contains content filtering, multi-deployment support, and a built-in intrusion detection system. You may also use it as a VPN gateway or proxy server.
Besides, many Linux users rely on the Firewall because of its easily accessible and dynamic settings. As a result, IPFire is an ideal companion for network security.
9. pfSense
Based on the FreeBSD custom kernel, it is one of the most dedicated open-source firewalls. pfSense has high-level packet filtering to provide total network security. The most intriguing element of the Firewall, though, is that it is accessible in various formats, ranging from physical devices to digital versions.
Additionally, if we talk about the best free Linux Firewall Software, pfSense’s sophisticated features include load-balancing for inbound and outgoing traffic, compatibility with DNS and DHCP servers, etc. Aside from the free version, pfSense also has a premium version for commercial use.
10. Untangle Firewall
Next in our list of the popular and best Linux Firewall Software open-source is Untangle. It is a Debian 8.4-based open-source firewall. The Firewall provides all functionalities via a well-managed web-based user interface. You will have free access to vital network features. Untangle was formerly known as NG Firewall and is used by skilled Linux administrators.
Furthermore, Untangle Firewall also includes spam, phishing, virus blocker, intrusion protection, an adblocker, and other features. It is simple to install on any physical or virtual computer, or it may be purchased with an NG Firewall preconfigured.
Conclusion – Best Free Linux Firewalls
Dear Visitors, it would assist if you now had a better grasp of the importance of network security. You can protect your network from hackers by using these best Linux firewalls. I hope this list of Linux Firewall Software will assist you in selecting the best one.