The Linux-based BIND (Berkeley Internet Name Domain) server is the most widespread and well-known DNS (Domain Name System) software, which is a key part of the basic infrastructure of the Internet. BIND's development began at the University of Berkeley in the late 1980s, and since then it has undergone many developments to meet today's challenges. As a DNS server, BIND's main task is to translate human-readable domain names (e.g. www.pelda.hu) to IP addresses (e.g. 192.168.1.1), thus enabling Internet users to easily navigate the web. However, BIND's role is much more complex and critical than that; ensures the smooth operation of the domain name system, which is essential for the stability and security of the Internet.

POSIX (Portable Operating System Interface) is a collection of standards created to promote compatibility between operating systems. POSIX standards are crucial in the world of software development, especially for those working with UNIX-based systems such as Linux. These standards ensure that different operating systems handle file systems, character devices, and other basic system-level functions in a similar way.