The Firewall Configuration Tool

This package configures your Linux box as a firewall. You can define your firewall architecture with/without perimeter and/ or internal networks.  Click here to get an overview of the supported configurations.

Things you have to do to setup the Firewall:

  1. Setup your Network configuration.
  2. Define the services which are available on your Firewall.
  3. Configure the services you want to use on your internal and perimeter networks.
  4. Setup/add your  Definition of (new) services.
  5. Describe the Screening rules for the services from/to your internal and perimeter networks.
  6. Generate the IP-Filtering Rules to setup your specified services.
  7. Define Trusted external IP´s with the corresponding devices.
  8. Setup some Aliases (variables) you want to use within the configuration.
You have to process at minimum steps 1, 2, 6. If you don´t have an internal/perimeter network, steps 3, 5 are obsolete.

Don´t forget to re-build the IP-Filtering rules (step 6), after changing a definition in any mask
- except the Configure mask, this definition is evaluated at runtime  within your rules.

When you are finished, you should test your setup and examine the created rules in the logfile.

You start the firewall whith the command ´firewall [-v] start´.


(c) 1997 Jens Hellmerichs-Friedrich