Recommend 8 open source Linux firewalls

1. Zentyal

Zentyal's predecessor was the eBox Platform, a very popular Linux security gateway distribution. Zentyal will serve as the community version of eBox, and its own eBox will serve as the company's commercial version. Zentyal provides gateway management, unified threat management, office services, and unified communications services. The software source code is released based on the GPL.

2. pfSense

pfSense is free open source software firewalls and routers under a FreeBSD.

pfSense is an operating system derived from m0n0wall. The technologies it uses include Packet Filter, FreeBSD 6.x (or DragonFly BSD, if ALTQ and CARP are completed) ALTQ (to support packet queues excellently), integrated package management system (to extend new features for its environment) .

3. IPFire

IPFire is a Linux firewall distribution that is built from source code and comes with a lot of additional features. It is easy to set up and manage. It uses stateful inspection firewalls, content filtering engines, traffic control quality (QoS), VPN technology, and a large number of records.

4. SmoothWall

SmoothWall is one of Europe's successful Open Source project, it can help you put a machine 386,486 has been eliminated become a Powerful and stable fire-fighting router! It has been used by more than 300,000 users in 21 countries! SmoothWall supports ISDN, ASDL/Cable and multi-network cards, etc. The most incredible thing is that all of them can be used in 5 Configuration is complete in minutes! Web-based management and support for SSH, DHCP, complete firewall tools will be available in their commercial versions.

5. ClearOS

ClearOS is a network and gateway server for small businesses designed for distributed environments. ClearOS is built on top of CentOS, and the distribution includes an extensive list of integrated services through an intuitive web-based feature that is easy to configure. Some of the tools found in ClearOS include anti-virus, anti-spam, virtual private network, content filtering, bandwidth management, SSL authentication, and web log analyzer, just the number of modules available for the name. Its distribution provides free downloads and is inclusive for 18 months of free security updates.

6. IPCop

IPCop Firewall is a firewall suite under Linux, mainly for home and SOHO (Small Office /Home Office) users. Its interface is very friendly and task-based. It is located between the user's work area and the Internet connection, and monitors and manages various information through some TCP/IP business rules.

Features and Features

◆ Stable

◆ Security

◆ Detailed configuration

◆ Easy to maintain

◆ easy to configure

◆ simple interface

◆ online update

7. m0n0wall

M0n0wall, a very strange software name, M0n0wall is based on the performance and stability of the FreeBSD kernel (currently based on 4.11, may be based on 6.x in the future) embedded firewall system.

M0n0wall has very low hardware requirements, 486 chip, 32M memory (generally recommended 64M), 8M hard disk (it can be used), plus network card (two, three DMZ support) Working properly and having very good data bearing capacity. The system does not use the external storage switch system, so the external memory such as the hard disk is only used when the system boots. After the loading is completed, the external storage is no longer needed, so the FLASH electronic disk (including the CF card transfer) can also be used as the system medium. This can achieve a very high reliability, because the FLASH media is slightly slower than the hard disk access speed, so a little sacrificed start time. For Pentium-class hardware configurations, the typical boot time is less than 1 minute.

8. Devil Linux

Devil-Linux is a special Linux distribution for firewalls and routers occasions. The goal of Devil-Linux is to have a small, customizable and secure Linux. Devil-Linux will be much more than just a normal router in the future. We will provide many other services, but this release will still be simple and fast to maintain.