Linux firewalls

Friday, 24 May 2002, 12:09 PM EST

When looking for an effective, inexpensive firewall solution, Linux firewalls do not often enter into the picture unless someone involved in the security planning process is a Linux guru. With the ability to easily run on that old system in the corner - the one that can't even load the latest version of Windows (mine runs on a Pentium 133) - Linux firewalls can provide many of the basic features and functionality of their commercial counterparts, such as NAT (network address translation) and stateful packet filtering, at a fraction of the cost.

Linux firewalls may not be the best solution in all situations - such as the main corporate gateway firewall for large organizations - but they work great as internal firewalls separating network subnets and gateway firewalls for small and medium businesses and home networks with broadband Internet access.

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