stresslinux is a minimal Linux distribution that runs from a bootable CDROM or via PXE. It makes use of some utitlities such as stress, cpuburn, hddtemp, lm_sensors, etc. It is dedicated to users who want to test their system(s) entirely on high load and monitor the health of these systems.
strongSwan is a complete IPsec implementation for the Linux, Android, Maemo, FreeBSD, and Mac OS X operating systems. It interoperates with with most other IPsec-based VPN products via the IKEv2 or IKEv1 key exchange protocols. The focus of the strongSwan project is on strong authentication mechanisms using X.509 public key certificates and optional secure storage of private keys on smartcards through a standardized PKCS#11 interface. A rich choice of modular plugins adds additional features like Trusted Network Connect or advanced cryptographical algorithms.
The stx::CBTreeDB is a collection of C++ classes with which read-only key-value database files can be created and read. A database efficiently maps a large number of integral fixed-length keys to opaque binary value blobs. Variable-length or duplicate keys are currently not supported. Keys are organized into a highly compact index structure, which is very similar to a B-tree and allows very fast key lookups. Both keys and values are stored in order and thus queries in a local proximity can benefit from caching effects. All applications mapping a large number of constant, integral keys to string or data blobs can benefit from this library.
stygmorgan is interactive musical workstation software, i.e. an organ with automatic accompaniment able to create complex musical sequences. Developed in C++ using FLTK, it uses the ALSA sequencer to send MIDI messages to external sound fonts. It uses General MIDI and is fully configurable to use any kind of sound font. It can import musical style files in various formats.
suPHP is a combination of an Apache module (mod_suphp) and an executable which provides a wrapper for PHP. With both together, it is possible to execute PHP scripts with the permissions of their owner without having to place a PHP binary in each user's cgi-bin directory. suPHP doesn't need Apache's suExec, and provides a logging function.
subtle is a grid-based manual tiling window manager with a strong focus on easy but customizable look and feel. In comparison to other tiling window managers, subtle has no automatic tiling of the screen size in any way. Instead, windows are arranged according to positions inside of a grid. These positions are called gravities.
sud (superuser daemon) permits a user to switch to root privileges and to use a suid program in a nosuid environment. It is based on a client/server model and on the ability to pass file descriptors between processes. sud permits you to choose your authentication method, and your effective credentials will be checked by using a Unix domain socket.
sudoku.pl that offers a simple alphanumeric board display that supports the 9x9 matrix. It can generate a sudoku puzzle, but manual input by the user is also possible to use a sudoku from a newspaper, the Internet etc. It assists the user in solving the sudoku by providing some functions, up to and including solving the sudoku from the current board-setting. If the option -d is set, all solutions are found and logged, up to a maximum of 10. This option enables the program to test a given sudoku for having one solution only, which is a generally preferred sudoku property. Also included is a sudoku generator that supplies the single solution type sudokus.