Secure Operating System

MirBSD originated as a patch set against OpenBSD-current, an ultra secure operating system and NetBSD derivate, and has since also incorporated changes from NetBSD, a 4.4BSD-derived ultra portable operating system. It features bugfixes, code removal for the sake of simplicity, and feature... Platforms: *nix

DEX Extensible Operating System is an operating system specifically designed for educational and research use. DEX Extensible Operating System allows for the dynamic reconfiguration and customization of various system services using concepts found in extensible operating systems. It aims to... Platforms: *nix

Fast Secure File System exports existing directories securely over the network, letting users store and retrieve encrypted data in a scalable and transparent way. FSFS is written in C and works on GNU/Linux systems on x86 and PPC architectures, with help from FUSE and OpenSSL. File systems are... Platforms: *nix

Inferno is a compact operating system designed for building distributed and networked systems on a wide variety of devices and platforms. Inferno was originally developed at Bell Labs (the research division of Lucent Technologies). Inferno Operating System is a well-designed, economical... Platforms: *nix

Fast Secure File System exports existing directories securely over the network, letting users store and retrieve encrypted data in a scalable and transparent way. FSFS is written in C and works on GNU/Linux systems on x86 and PPC architectures, with help from FUSE and OpenSSL. File systems are... Platforms: *nix

The Contiki Operating System is mostly known as an operating system for networked embedded systems. A few years ago, however, Contikis primary claim to fame was its Commodore 64 port. With the help of JAC64, a Java-based C64 emulator developed by my colleague and fellow Contiki developer Joakim... Platforms: *nix

Remote Secure Command System project is a remote asynchronous and secure command system based on a file configuration. A standalone server sends and receives commands through files, and a batch system launch ssh and scp commands.. Get A Remote Secure Command System at SourceForge.net. Fast,... Platforms: *nix

LoseThos is a 64-bit, multi-cored, ring 0 only, preemptive multi-tasking, open source, public domain, free, x86 PC operating system written from scratch. It is not a unix. Its purpose is for recreational programming. It has no networking. You will dual boot LoseThos or run it in VMWare because it... Platforms: Not Applicable

Tampa Network Operating System (TNOS) is an Amateur Radio application providing a BBS, chat, and many other internet servers. It has been in development since 1991 and is used world-wide.The current release (3.0) is ONLY available (at this time) via Platforms: *nix

POSYS: Programmers Operating SYStem. A small, fast, dynamic, secure OS project. (In development) Language: NASM + CC386. Platforms: Windows, Mac, Linux

The goal of the Basic Operating System (BOS) project is to write a new modular and fast operating system in NASM and GCC. Platforms: Windows, Mac, Linux

JNode is a Java New Operating system Design Effort. JNode is a simple to use and install Java operating system for personal use on modern devices. Any java application runs on it, fast and safe. See our homepage for additional information. Platforms: Windows, Mac, Linux

chaos is a new operating system - written from scratch by a young group of people. Unlike most other systems, we do not try to reimplement something else, but rather tries to do things in our own (hopefully better) way. Platforms: Windows, Mac, Linux

MINIX 3 is a new open-source operating system designed to be highly reliable and secure. This project is based somewhat on previous versions of MINIX, but is fundamentally different in many key ways. MINIX 1 and 2 were intended as teaching tools; MINIX 3 adds the new goal of being usable as a... Platforms: *nix

Visopsys is an alternative operating system for PC compatible computers. Under development since late 1997, this system is small, fast, and open source. Visopsys features a simple but attractive interface, real preemptive multitasking, and virtual memory. Though it attempts to be compatible in... Platforms: *nix

JNode is a simple to use and install Java operating system for personal use. It runs on modern devices. Any java application will run on it, fast & secure! JNode is open source and uses the LGPL license. This release has taken way too much time, but is finally here! It contains lots of... Platforms: *nix

HeavenOS is an original, alternative 32-bit operating system for Intel 80386 compatible processors. It is made with NASM (The Netwide Assembler), and is not intended to compare to modern operating systems, but to try to get the best features and discover better ways to do things. HeavenOS... Platforms: *nix

S-M-S stands for Slackware Mini Server ans is a Linux operating system console based and manageable through webmin interface. Although described as a mini server, have all the features of a powerful server such as apache2, sendmail, spamassassin, clamav, squid, iptables firewall, mysql, cups and... Platforms: *nix

OpenVZ Live CD is an Operating System-level server virtualization solution, built on Linux. OpenVZ creates isolated, secure virtual environments — VEs (otherwise known as virtual private servers, or VPSs) on a single physical server enabling better server utilization and ensuring that... Platforms: *nix

Ubuntu Linux is a complete desktop Linux operating system, freely available with both community and professional support. The Ubuntu team is proud to announce Ubuntu 5.10 Server, the first release of Ubuntu designed especially for server environments. Like the standard desktop Ubuntu, it... Platforms: *nix