OpenBSD

openbsd

OpenBSD is a Unix-like computer operating system descended from Berkeley Software Distribution (BSD), a Research Unixderivative developed at the University of California, Berkeley. It was forked from NetBSD by project leader Theo de Raadt in late 1995. As well as the operating system, the OpenBSD Project has produced portable versions of numerous subsystems, most notablyPF, OpenSSH and OpenNTPD, which are very widely available as packages in other operating systems.

The project is also widely known for the developers’ insistence on open-source code and quality documentation, uncompromising position on software licensing, and focus on security and code correctness. The project is coordinated from de Raadt’s home inCalgary, Alberta, Canada. Its logo and mascot is a pufferfish named Puffy.

OpenBSD includes a number of security features absent or optional in other operating systems, and has a tradition in which developers audit the source code for software bugs and security problems. The project maintains strict policies on licensing and prefers the open-source BSD licence and its variants. In the past this has led to a comprehensive license audit and moves to remove or replace code under licences found less acceptable.

As with most other BSD-based operating systems, the OpenBSD kernel and userland programs, such as the shell and common tools like cat and ps, are developed together in one source code repository. Third-party software is available as binary packages or may be built from source using the ports tree.

The OpenBSD project maintains ports for 20 different hardware platforms, including the DEC Alpha, Intel i386, Hewlett-Packard PA-RISC, x86-64 and Motorola 68000 processors, Apple’s PowerPC machines, Sun SPARC and SPARC64-based computers, the VAXand the Sharp Zaurus.The OpenBSD Foundation was accepted as a mentoring organization for Google Summer of Code 2014.
source from :http://en.wikipedia.org/wiki/OpenBSD

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