Practical Internet Server Configuration: Learn to Build a Fully Functional and Well-Secured Enterprise Class Internet Server

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2021

R. La LauPractical Internet Server Configurationhttps://doi.org/10.1007/978-1-4842-6960-2_2

2. Unix and POSIX in a Few Words

Robert La Lau¹  

(1)

Blain, France

 

BSD and Linux are both Unix-like systems (or Unices), systems that descend from or are inspired by Unix, the operating system that was first developed in the 1960s by Bell Labs, part of AT&T, the American phone company.

POSIX (Portable Operating System Interface ) is a standard that defines the minimal set of functionalities, commands, and interfaces, as well as the directory structure, that a system must implement to be considered a Unix system.

About Unix and POSIX alone, entire books can be written. ...