Open source free, the best 3 major systems and 9 major firewall software Amway gives you

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3 Best Free Firewall Software for Windows

The Internet is so developed and there are so many viruses, what can we do to prevent it? Firewalls are usually our first choice. But did you know that firewall software does not work well on every operating system, and different systems require different firewalls to protect, so there is a Windows Firewall, a macOS Firewall, or a Linux Firewall. Today we will learn about the firewalls that are easy to use in each system.

What is firewall software?

Firewall refers to the image of a method of obtaining security. It is a combination of computer hardware and software that establishes a security gateway between the computer and the network to which it is connected, thereby protecting the intranet from The intrusion of illegal users is mainly composed of four parts: service access policy, authentication tool, packet filtering and application gateway.

3 Best Free Firewall Software for Windows

1 、 Peer block

Peerblock is one of the few free open source personal firewalls, it is described on the official homepage as a fork of the famous PeerGuardian 2 software, its main purpose is to block network attacks from accessing your machine, for this purpose, it uses Provided IP blocking list of well-known blocking websites.

2) Tinywall

Tinywall is a lightweight PC firewall without annoying pop-up windows or advertisements. The entire software is very small and does not take up too much computer resources. The interface of the software is also very simple, which brings users Excellent visual experience, this software can help users effectively block dangerous content, the most important thing is that it also has automatic learning function Tinywall also provides whitelist, application access restriction, IPv6 support, port and domain block list, password lock Wait.

3、Sophos

Sophos has a good reputation in the field of network security, it is a complete network security system. To stop a wider range of attack threats, Sophos employs a comprehensive defense-in-depth approach to securing every endpoint, rather than relying on just one primary security technology. This is the combination of good genes (tradition) and modern technology (next generation) - Intercept X. Intercept X integrates industry-leading malware detection and exploit protection with built-in endpoint inspection and response (EDR) mechanisms.

3 Best Free Firewall Software for macOS

1、IceFloor

IceFloor protects macOS devices from Trojans, malware and external spies. Its interface is simple and easy to use. It's very smooth to follow the installation steps and easy to use, it monitors links using filtering and bandwidth rules. But please note that it hasn't been updated since June 2014.

2、Hands Off!

Hands Off firewall software, a mac firewall software that can help you monitor and control the access of applications to your network and disk, it can help you safely protect your Mac system and your private data. In addition to the free version, this firewall also offers a premium (paid) version, which is relatively expensive.

3、Wall

Murus is a user-friendly, simple firewall that helps you monitor and block application connections. It can intercept connections at the application layer and preserve them when deciding whether to pass or block connections.

3 Best Free Firewall Software for Linux

1、ClearOS

This product is an easy-to-use, well-supported Linux firewall, an excellent soft-routing system, with most of the functions of existing routing systems, such as DHCP, port forwarding, firewall, and more. Based on CentOS and Red Hat Enterprise Linux, it is a gateway and network server designed mainly for small and medium-sized enterprises and distributed environments.

2、OpenWRT

This firewall is designed for networking and routers. Openwrt is a GNU/Linux distribution. Like most other distributions, Openwrt's firewall is also based on iptables. Openwrt supports two ways to configure iptables, one is Openwrt's own UCI way, and the other is the traditional Linux way. Openwrt is not suitable for home use looking for a simple firewall, but more suitable for businesses with high security needs.

3、IPFire

IPFire is a Linux firewall distribution that is built from source and also comes with a ton of additional features. It's easy to set up and manage. It employs stateful inspection firewalls, content filtering engines, class of service (QoS), VPN technology, and extensive logging.

Well, the free firewall software will be introduced here first. In the next issue, I will share with you some firewall software that requires payment but is very easy to use.

As a network security expert, we must learn to make full use of resources. If there are free resources, we will maximize the use of free resources; with paid software, we will spend every penny on the edge.

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