Ports Search

PLplot is a library of C functions that are useful for making scientific plots from a program written in C, C++, or Fortran. The PLplot library can be used to create standard x-y plots, semilog plots, log-log plots, contour plots, 3D plots, mesh plots, bar charts and pie charts. Multiple graphs (of the same or different sizes) may be placed on a single page with multiple lines in each graph. Different line styles, widths and colors are supported. A virtually infinite number of distinct area fill patterns may be used. There are almost 1000 characters in the extended character set. This includes four different fonts, the Greek alphabet and a host of mathematical, musical, and other symbols. The fonts can be scaled to any desired size. A variety of output devices are supported and new devices can be easily added by writing a small number of device dependent routines.

Table.el is an Emacs lisp package that extends Emacs and provides text based table creation and editing feature. With this package Emacs is capable of editing tables that are embedded inside a document, the feature similar to the ones seen in modern WYSIWYG word processors. A table is a rectangular text area consisting from a surrounding frame and content inside the frame. The content is usually subdivided into multiple rectangular cells, see the actual tables used below in this document. Once a table is recognized, editing operation inside a table cell is confined into that specific cell's rectangular area. This means that typing and deleting characters inside a cell do not affect any outside text but introduces appropriate formatting only to the cell contents. If necessary for accommodating added text in the cell, the cell automatically grows vertically and/or horizontally.

Net::Jabber The Jabber Instant Messaging project is an Open Source project seeking to provide a complete cross protocol messaging solution. The problem with current IM solutions is that they are all proprietary and cannot talk to each other. Jabber seeks to get rid of those barriers by allowing a Jabber client to talk with an AOL user, or an IRC chat room, or any number of other programs. For more information about the Jabber project visit Net::Jabber is a collection of Perl modules that provide a Perl Developer access to the Jabber protocol. Using OOP modules we provide a clean interface to writing anything from a full client to a simple protocol tester.

RTG is a flexible, scalable, high-performance SNMP statistics monitoring system. It is designed for enterprises and service providers who need to collect time-series SNMP data from a large number of targets quickly. All collected data is inserted into a relational database that provides a common interface for applications to generate complex queries and reports. RTG includes utilities that generate configuration and target files, traffic reports, 95th percentile reports and graphical data plots. These utilities may be used to produce a web-based interface to the data. The unique features of RTG are: * Runs as a daemon, incurring no cron or kernel startup overhead * Written entirely in C for speed, incurring no interpreter overhead * Multi-threaded for asynchronous polling and database insertion * Inserts data into a relational database where complex queries and reports may be generated * Performs no data averaging in order to support billing, etc. * Can poll at sub-one-minute intervals

chrony is a pair of programs which are used to maintain the accuracy of the system clock on a computer; the two programs are called chronyd and chronyc. chronyd is a daemon which runs in background on the system. It obtains measurements via the network of the system clock's offset relative to time servers on other systems and adjusts the system time accordingly. For isolated systems, the user can periodically enter the correct time by hand (using chronyc). In either case, chronyd determines the rate at which the computer gains or loses time, and compensates for this. chronyd implements the NTP protocol and can act as either a client or a server. chronyc provides a user interface to chronyd for monitoring its performance and configuring various settings. It can do so while running on the same computer as the chronyd instance it is controlling or a different computer.

Paraller::Pvm is a perl interface to the Parallel Virtual Machine (PVM) Message Passing System. The PVM message passing system enables a programmer to configure a group of (possibly heterogenous) computers connected by a network into a parallel virtual machine. Using PVM, applications can be developed which spawns parallel processes onto nodes in the virtual machine to perform specific tasks. These parallel tasks can also periodically exchange information using a set of message passing functions developed for the system. PVM applications have mostly been developed in the scientific and engineering fields. However applications for real-time and client/server systems can also be developed. PVM simply provides a convenient way for managing parallel tasks and communications without need for rexec or socket level programming.

PyGopherd is a modern dynamic multi-protocol hierarchical information server with a pluggable modularized extension system, full flexible caching, virtual files and folders, and autodetection of file types -- all with support for standardized yet extensible per-document metadata. PyGopherd is designed to serve up files using the Gopher Internet protocol. With Gopher, you can mount a filesystem (viewing files and folders as if they were local), browse Gopherspace with a web browser, download files, and be interactive with searching. But this is only part of the story. The world of Gopher is more expansive than this. There are two major gopher protocols: Gopher0 (also known as RFC1436) and Gopher+. PyGopherd supports both. PyGopherd also fully natively supports HTTP, the protocol used on the Internet for most Web transactions. So, you can access a PyGopherd server using anything from a small, 20-line client in mobile phone to a massive 50-MB web browser.

A tool to quickly ping N number of hosts to determine their reachability without flooding the network. fping is different from ping in that you can specify any number of hosts on the command line, or specify a file containing the lists of hosts to ping. Instead of trying one host until it timeouts or replies, fping will send out a ping packet and move on to the next host in a round-robin fashion. If a host replies, it is noted and removed from the list of hosts to check. If a host does not respond within a certain time limit and/or retry limit it will be considered unreachable. Unlike ping, fping is meant to be used in scripts and its output is easy to parse.

Philip's Music Writer (PMW) is a computer program for high quality music typesetting. Originally written for Acorn RISC OS computers, there is now a version that runs on Unix and Unix-like systems. PMW operates by reading an input file containing an encoded description of the music; such a file can be constructed using any text editor or word processor. The music encoding is very straightforward and compact, and quick to enter. PMW comes with a PostScript outline font that contains all the musical shapes (notes, rests, accidentals, bar lines, clefs, etc.) that it requires. There is a man page for the command line options, and a 200-page manual that is distributed as a PDF file.

HDF4 (originally known as HDF) is file format for storing scientific data and a software library that provides high-level APIs and a low-level data access interface. HDF technologies at present include two data management formats (HDF4 and HDF5) and libraries, a modular data browser/editor, associated tools and utilities, and a conversion library. Both HDF4 and HDF5 were designed to be a general scientific format, adaptable to virtually any scientific or engineering application, and also have been used successfully in non- technical areas. The Open Source format is a key technological foundation for HDF core technologies. It allows users to collaborate with The HDF Group regarding functionality requirements and permits users' experience and knowledge to be incorporated into the HDF product when appropriate. It also permits users and organizations without adequate technology resources to use a sophisticated and robust data management tool for no charge.