Based on 4MLinux Server 21.0, TheSSS 21.0 is powered by the long-term supported Linux 4.4.30 kernel and includes the Apache 2.4.25 web server, MariaDB 10.1.21 database server, and PHP 5.6.30 server-side programming language. This is also the first TheSSS release to come pre-installed with the LFTP 4.7.5 open-source FTP client. TheSSS (The Smallest Server Suite) is a very lightweight server-oriented operating system that’s distributed as a live ISO image, which means that you can set up a server in minutes without installing anything on your personal computer. It could come in handy to various web developers and testers.