Preventing network intrusion, the firewall tools you must know!

In the era of hacking and spam flooding, to enhance network security is essential. Therefore, we need some reliable firewall tools to protect the network from being attacked. Firewall as a security protection of internal and external networks, can detect the computer into and out of the network communication, and control the network data traffic. This article organized some open source firewall, hoping to help you maintain network security.

• Firewall and router software pfSense

PfSense is FreeBSD under the free open source firewall and router software.

PfSense comes from the m0n0wall operating system. It uses the technology including Packet Filter, FreeBSD 6.x (or DragonFly BSD, if ALTQ and CARP are completed ) ALTQ (with excellent support for packet queues), integrated package management system (to its environment to expand new features) The

• Network and gateway server ClearOS

ClearOS is a network and gateway server for small businesses that are designed based on a distributed environment. Some of the tools found in ClearOS include anti-virus, anti-spam, virtual private network, content filtering, bandwidth management, SSL authentication, and network log analyzer, just the number of modules available for names. Its distribution is provided for free download, inclusive for 18 months of free security updates.

• Linux security gateway module Untangle

Untangle Gateway is a Linux open source gateway module, support for garbage filtering, URL blocking, anti-virus worms and other functions.

• Linux firewall IPFire

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

• Linux firewall SmoothWall

SmoothWall is one of the successful Open Source projects in Europe, and it can help you turn a 386, 486 machine that has been eliminated into a powerful, stable firewall router. It already has 300,000+ users and is used in 21 countries. SmoothWall also supports ISDN, ASDL / Cable and multi-network card and other network equipment.

• Network firewall Shorewall

Shorewall (also known as Shoreline Firewall) can be used as a network firewall, gateway/router/server, or used to include standalone Linux systems. For the configuration of Iptables by creating your own firewall, it may not be the most intuitive tool, but it is very powerful and flexible.

• Endian Firewall

The Endian Firewall Community is a full-featured Linux security release that turns each system into a full-featured security device with UTM functionality. Its features include status packet detection firewall, a variety of protocol (HTTP, FTP, POP3, SMTP) application-level agents, support for anti-virus and spam filtering, Web traffic filtering and VPN.

• IPCop Firewall

IPCop Firewall is a Linux firewall suite, mainly for home and SOHO (Small Office / Home Office) users. It is very user-friendly and task-based, it is located between the user’s work area and Internet connection, through a number of TCP / IP business rules to monitor and manage a variety of information.

Features and features

stable
Safety
Can be configured in detail
Easy to maintain
Easy to configure
Simple interface
Online update

• Network Operating System VyOS

VyOS is forked from the Vyatta community, is a network operating system that provides software-based network routing, firewall and VPN functionality. VyOS is based on Debian GNU/Linux and is fully open source free. VyOS can run on physical devices and virtual platforms, supporting integration packages for para-virtual drives and virtual platforms.

• UFW (Uncomplicated Firewall)

UFW (Uncomplicated Firewall) firewall is a host-side iptables class firewall configuration tool. The purpose of this tool is to provide the user with an easy control of the interface, just like the package integrates and dynamically detects open ports. Preventing network intrusion, the firewall tools you must know!