Free Operating Systems & Updates for Linux

FreeNAS is an open source BSD operating system based on the FreeBSD distribution and designed to provide users with NAS (Network-Attached Storage) services. It is distributed as installable-only minimalistic CD ISO images and deployable on both 64-bit...

OpenBSD is a free project that delivers a multi-platform UNIX-like operating system that is portable, efficient, secure, and based on the 4.4BSD platform. It is a powerful server product used on hundreds of thousands of computers worldwide. Availability,...

NetBSD is an open source BSD distribution derived from the well known and stable FreeBSD operating system and designed from the ground up to provide users with a highly portable UNIX-like OS that supports a wide range of hardware platforms. Key features...

MINIX is an open source, independent and freely distributed UNIX-like computer operating system based on a microkernel architecture. It is a small OS that has been designed from the ground up to be used as an educational tool targeted at low-power laptops...

m0n0wall is a freely distributed, powerful, minimal and full-featured open source operating system that has been designed from the ground up to act as a complete firewall solution for embedded systems or personal computers. It is derived from the...

pfSense® is a freely distributed and open source BSD operating system derived from the well known m0n0wall project, but with radically different goals like using Packet Filter and the latest FreeBSD technologies. The project can be used as both router...

DragonFly BSD is an open source BSD operating system designed to be the logical continuation of the FreeBSD-4.x OS series. It is very similar to other BSD-based distributions, such as FreeBSD, NetBSD or OpenBSD. It is a fork in the path, so to speak,...

AROS Research Operating System is an open source project that tries to develop a portable and completely free computer OS that is 100% compatible with the proprietary AmigaOS operating system.Initially, AROS Research Operating System was designed as a...

AquariusOS is a free and open source computer operating system derived from the MikeOS and TachyonOS projects and designed from the ground up to run on 16-bit and 32-bit hardware platforms. It has been written in the BASIC and Assembly programming...

Oracle Solaris (formerly SunOS) is a commercial product that provides users with an integrated and full featured server-oriented platform that combines the powerful OpenStack open source cloud computing software with a stable and reliable enterprise-class...