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Free Open Source Linux Firewall- pfSense

The pfsense is an open source router or firewall computer, which is dependent on FreeBSD. It can be installed on any computer in order to make any dedicated firewall for a network. It is also noted for its reliability. It is commonly deployed as a firewall of perimeter, router, or any wireless access point, as a DNS server or in the form of a VPN endpoint. The name pfsense actually can be segregated into two parts. On the one hand, pf is a tool of stateful packet filtering, which acts as a firewall or as a routing service or as a packet filter service on many platforms made up of UNIX and BSD. It acts as the free open source Linux Firewall.

The main features of this tool are that it can help the users to get web based UI, shaping of traffic, filtering, generating real time system through Ajax. It is also equipped with extensions of button installer like squid proxy server, snort intrusion, detection system, IP block lists. It can work in multi language also. As far as functionality and connectivity is concerned, it has captive portal, DHCP relay, and server along with multiple resolvers (TinyDNS, DNS forwarder, and Unbound etc.) It has a long list of packages, which allows expanding easily the overall functionality without compromising on security of the system. It is a popular tested product, which has more than 100,000 downloads and other countless installations all over the world. It ranges from the domestic to large companies, renowned public organizations apart from other universities and ministries.

It utilizes pOf, which is an advanced utility of passive OS and network utility along with fingerprinting, which allows you to filter through an operating system, thus initiating the connection. It has highly flexible policy of routing, which is made possible through choosing the gateway on the basis of rules.

free open source Linux Firewall- pfSense

Filed in: Networking Software Guides

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