NetBSD — свободная реализация UNIX системы, первая из ряда операционных систем основанных на BSD (Unix-системе университета Беркли). Текущая версия — NetBSD 3.1, выпущена 6 ноября 2006 года. NetBSD портирована на огромное количество компьютерных архитектур; лозунг NetBSD — «Конечно, NetBSD может работать и на этом» (англ. «Of course it runs NetBSD»). Двоичные пакеты для почти 60 аппаратных платформ (составляющих в общей сложности 17 различных процессорных архитектур) компилируются из одного дерева исходных кодов, поэтому новые функции в машинно-независимых частях появляются сразу для всех платформ без необходимости адаптации. Разработка драйверов также машинно-независима, поэтому один драйвер для карты, работающей, например, на шине PCI, будет работать на платформах i386, Alpha, PowerPC, SPARC и других, поддерживающих шину PCI. Такая платформонезависимость позволяет разрабатывать встраиваемые системы с помощью целого набора инструментов: компиляторов, отладчиков и других инструментов, поддерживающих кросс-компиляцию. NetBSD is a free, secure, and highly portable Unix-like Open Source operating system available for many platforms, from 64-bit Opteron machines and desktop systems to handheld and embedded devices. Its clean design and advanced features make it excellent in both production and research environments, and it is user-supported with complete source. Many applications are easily available through The NetBSD Packages Collection. NetBSD is a highly integrated system. In addition to its highly portable, high performance kernel, NetBSD features a complete set of user utilities, compilers for several languages, the X Window System, firewall software and numerous other tools, all accompanied by full source code. The NetBSD Packages Collection, pkgsrc, contains over 5,700 packages. Binary package releases for a number of platforms are currently in progress.
The NetBSD operating system is a full-featured, open source, UNIX-like operating system descended from the Berkeley Networking Release 2 (Net/2), 4.4BSD-Lite, and 4.4BSD-Lite2. NetBSD 3.0 runs on 57 different system architectures featuring 17 machine architectures across 17 distinct CPU families, and is being ported to more. The NetBSD 3.0 release contains complete binary releases for 53 different machine types, with the platforms amigappc, bebox, pc532 and playstation2 released in source form only. NetBSD is distributed in three forms: formal releases, NetBSD-release, and NetBSD-current. Formal releases are done periodically and include well-tested binaries, source code, and installation tools. NetBSD-release is a daily updated snapshot of the release branch, which normally will become the next patch release. NetBSD-current is a nightly distribution of the latest development sources, meant for people who want the absolute latest software, and don't mind an occasional bug. NetBSD 3.0 continues our long tradition with major improvements in stability, performance, networking, security, also includes support for two new platforms (iyonix and hp700), and many new peripherals. Far reaching improvements to the network stack will not only provide better performance but also make NetBSD an excellent choice for a VPN gateway. PAM (Pluggable Authentication Modules) framework adds more flexibility to NetBSD's user management and simplifies integration into heterogeneous networks. The kernel, libraries and utilities can now handle filesystems larger than two terabytes, and support for Xen 2.0 allows hosting many virtual servers on a single machine. NetBSD features New in NetBSD 3: native support for the Xen virtual machine monitor! With native Xen support on Intel platforms, NetBSD provides seamless support for execution of multiple guest operating systems with unprecedented levels of performance and resource isolation.
NetBSD 3.1
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