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)|
|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.
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