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Professional Services » Linux Firewall

Network security is an important aspect of todays enterprise information technology. A good security policy consists out of user education, access control lists, operating system, applications and last but not least a stable and reliable firewall. Even though a firewall is far from the key factor of network security it should never be underestimated.

Linux is known to be a secure operating system which is the key factor of a secure firewall. That's why agencies such as the US National Security Agency (NSA) are using Linux to protect their confidential data. Not only is Linux a secure operating system, it is an ideal platform for security applications, such as a firewall. Linux offers a native firewall called Netfilter, below is an overview of its main features:

Kernel Space Packet Filtering
Stateful Packet Inspection
MAC Address Filtering
Enhanced Network Address Translation (NAT)
Rate-Limited Matching
Type of Service (TOS) Prioritization

To facilitate user friendly administration Linugen has developed a web based Policy Manager. This allows administrators to take control of the firewall rulebase through a standard browser. Needless to say the web based Policy Manager is secured using SSL certificates. In addition Linugen also offers various Intrusion Detection Systems.

Read what others have to say about Linux Firewalling:

ZDNet: Netfilter and iptables - Stateful firewalling for Linux
Sys Admin Magazine: Linux's Next-Generation Stateful Packet Filter
SANS Institute: Linux Comes of Age with Stateful Firewalling
* These links refer to third party sites and will open in a new window.