The use of network services is unavoidable. With the emergence of the Internet, there's an ever-increasing dependence on the need to communicate with other networked systems. Knowing this, you can configure your system to provide the needed network services in a controlled and secure manner. In the second part, he addresses some critical configuration issues. These issues represent potentially serious security vulnerabilities that may exist on your newly installed Linux system.
Installations use defaults for many of the components being installed.
These default configurations are designed for the novice user and less for security. You can read this article in the printed edition of this publication. Nothing is done. Far away, in the sunshine, are my highest aspirations. I may not reach them but I can look up and see their beauty, believe in them, and try to follow where they lead.