Firewalls of Linux

Firewalls are necessary for the teams, if we connect to the Internet. There are several methods of work such as firewall and verify incoming information. At the same time, the firewall stops it being opened. Provides security for your computer and protects against system failures. For personal computers may be all that useful, but the networks do not.
Linux uses iptables filter to give greater protection and security. S is a base Linux software packages. We can determine exactly how you want to control incoming traffic through this program. We can define the criteria for each port, services, and we can define our strict rules for our inbound traffic.
By level of network security firewall, there are several distributions. IPCop is one of them. It 's just for safety. We need a computer running IPCop, and there are some basic activities such as painting, network connectivity and routing. Linux distributions like SuSE or Fedora for desktop use graphic editor and other software
in IPCop but there are only these core activities and iptables mentioned very important. It is our firewall between your network and the Internet does not work on it.
You need a more complicated setup, but worth it because it gives strong protection to our network.

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