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Top 10 Open Source Firewall

With perilous threats from crackers and script kiddes lurking in the network, IT administrators could do no better than placing a firewall protection. Firewall prevents unwanted access to departmental systems while preventing local systems from attacking systems on the other network. It ensures that the traffic entering and leaving the secured LAN is accessing the correct applications on the correct computers. We had already done with the top free Windows firewall. However, there is cool open source firewall to take advantage of. Open source firewall not only offers better customization options, but also reduces the cost of ownership. After a comprehensive search we assorted the top 10 open source firewall.

1. Endian Firewall


This is an open source firewall based on the IPCop Linux Firewall. It is one of the most widely used open source firewall with comprehensive features. It is almost an opensource Universal threat Management (UTM) device with a Statefull firewall, VPN, Webproxy, SIP proxy for VoIP, Web Security, Content Filtering, Mail gateway and Antivirus, Anti-spyware and Anti-phishing capabilities.

Some of the crucial features of Endian Firewall include

 Easy to configure and administer web interface
 Routing and NAT support
 Port forwarding
 NTP client and NTP Server support
 Reporting with system, network and traffic logging
 Remote Sysol server support
 IPSec VPN for site to site VPN and remote users support with Endian VPN client (Windows, MacOSX, Linux)using OpenVPN
 Mail security for SMTP and POP3 with Antivirus,Anti-Phishing, Anti-spyware
 Webproxy supporting HTTP,FTP and DNS bypass
 SPAM protection using pyzor Spam filter
 DNS bypass and Dynamic DNS support
 SIP proxy for VoIP
 Antivirus support provided by ClamAV
 Traffic Shapping on the Internet facing interface for QoS
 Traffic Monitoring using nTop
 DNS and DHCP server using dnsmasq
 Zone based Firewalling
 User Management with Windows Domain, LDAP, RADIUS and Samba support

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