Depot is a software management tool providing a simple, yet flexible, mechanism for maintaining third party and locally developed software in large heterogeneous computing environments. Depot integrates separately maintained software packages, known as collections, into a common directory hierarchy consisting of a union of all the collections. This common directory is defined as the software environment. A set of configuration options manages interactions and intersections between collections in the environment. Depot facilitates the introduction, update, and removal of collections in a software environment. Custom environments and complete test environments can be easily created for individual machines or for sets of machines. Collections with unexpected problems can be replaced with previous versions or simply removed. Individual collections or files can be moved from remote filesystems to the local disks of workstations without the worry that the files may become stale. All this is achieved with minimal wasted disk space and administrative overhead.
epkg is a package manager which uses the Encap Package Management System, a method for flexibly handling installation and management of third-party software on a Unix system. Encap places each package in its own subdirectory, then automatically manages symlinks to their appropriate places in /usr/local. The Encap package format includes features like postinstall scripts and prerequisite checking. Other features include builtin tar/gzip extraction, optional builtin FTP and HTTP support, transaction logging, and the ability to automatically upgrade a package to the latest version.
NetBSD is a free, secure, and highly portable Unix-like operating system available for many platforms, from large-scale server systems to powerful desktop systems to handheld and embedded devices. Its clean design and advanced features make it excellent in both production and research environments, and the source code is freely available under a business-friendly license. NetBSD is developed and supported by a large and vivid international community. Many applications are easily available through pkgsrc, the NetBSD Packages Collection.
Mpkg is a ports collection. Each port contains the information necessary to automatically download, compile, and install a specific program, and also information about dependencies between programs. Ports collections are common on various BSD flavors, but mpkg is designed to be portable to any UNIX-like system. Development has been done on DEC OSF/1, GNU/Linux, and Solaris. Mpkg also tries to install all programs in separate directories, never touching the common directories like /usr and /etc.
radmind is a suite of Unix command-line tools and a server designed to remotely administer the file systems of multiple Unix machines. At its core, radmind operates as a tripwire. It is able to detect changes to any managed filesystem object, e.g. files, directories, links, etc. However, radmind goes further than just integrity checking: once a change is detected, radmind can optionally reverse the change. Each managed machine may have its own loadset composed of multiple, layered overloads. This allows, for example, the operating system to be described separately from applications. Loadsets are stored on a remote server. By updating a loadset on the server, changes can be pushed to managed machines.