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OpenBSD is a Unix-like computer operating system descended from Berkeley Software Distribution (BSD), a Research Unix derivative 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 notably PF, 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 in Calgary, 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 are developed together in one source code repository. OpenBSD's userland encompasses basic Unix tools such as the shell, cat, and ps, as well as more complex services including httpd and OpenSMTPD. Third-party software is available as binary packages or may be built from source using the ports tree. The OpenBSD project maintains ports for many different hardware platforms, including the DEC Alpha, IA-32, MIPS64, Hewlett-Packard PA-RISC, SPARC, SPARC64, and x86-64 processors, Apple's PowerPC machines, the VAX, and the Sharp Zaurus.〔 The OpenBSD Foundation was accepted as a mentoring organization for Google Summer of Code 2014. == Uses == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「OpenBSD」の詳細全文を読む スポンサード リンク
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