Red Hat® Linux® 7 Unleashed

Network Security Tools

There are several tools that help you secure your networks. First of all, you must have a firewall to separate your internal network from the Internet and to prevent hackers from getting in. Then there is the problem of getting into your network from the outside, and from your network to the outside world, without leaving a wide-open door for hackers.

You must remember that the most important factor in security is usually the human one. You might have the best firewall in the world, perfectly configured, and an employee might simply copy confidential information to a floppy disk and hand it to a competitor. Security starts with people and with a good security policy. This particular subject cannot be discussed in depth ...