Protecting the corporate network through a reasonable firewall is essential. Such solutions are often quite expensive. The latter must, however, are not suitable for use in medium-sized enterprises, small offices or home users. Free programs have grown in recent years and provide for them, all functions. Free solutions are also in larger firms no longer a rarity. In the Linux sector there are some good solutions that I can download and install for free. One solution for that is Linux distribution IPCop. But I don't know how to put it on the distribution and administration. So thought that you guys will tell me something about the installation process.