Free based systems software for linux

jFlash is a multilingual, web-based flashcard system based on open web standards, PHP, and XML. jFlash System consists of two principal software modules:
1. A PHP system for indexing and delivering flashcard content.
2. A browser-neutral Javascript application that parses out and presents a set flashcards represented in XML.
jFlash is useful when you want to memorize something, and perhaps share the ability to memorize things with other people over the web. In addition, jFlash is language neutral since its content is presented in UTF-8, so theoretically you could use jFlash to drill anything from Arabic airports to zoo names in Tamil.
A number of learners around the globe and about 15 students in a University of Minnesota Korean class.
Please let me know if you find my software useful and Ill add a link to your jFlash content on my page if you wish!
jFlash is a server-side web application, so you must at present have a PHP-enabled web server.
Enhancements:
- The PHP frontend was updated to be compatible with PHP versions 5.0 or later by using the included compatibility shim for the new PHP XML DOM interface.
- A few more example lessons were added.

Remote Secure Command System project is a remote asynchronous and secure command system based on a file configuration.

A standalone server sends and receives commands through files, and a batch system launch ssh and scp commands.

Library Accounting System is a Web-based library system for cataloging books, journals, magazines, and newspapers.
Unlike the majority of Web-based systems, it is intended for individual users rather than for institutional use.
Library Accounting System supports loaning and viewing of records, automatic downloading of book information, and call number creation.
Enhancements:
- This release adds the ability to store movie details.

Babel Enterprise is an audit tool, focused on evaluating Operating System base security. Babel Enterprise evaluate the security level, or hardening, from a wide range of Operating Systems. Babel Enterprise run several audit probes and checks to give a photograph of the current system security status. Babel Enterprise also gives a Security Indicator of whole system.

Babel Enterprise design is made to manage system security in a big and complex enviroment with many different kind of Operating Systems, versions, technology and configurations. This complexity include to manage different human teams with different abilities and responsabilities. Babel Enterprise its a multiuser, distributed management auditing system for the major Operating Systems of the real world. Babel Enterprise also allows to be installed which redundant components in all of its components.

Each time you run a new audit policy, you will be able to see and evaluate objectively each important change in your systems: modifications on existing elements, new or erased elements, so that it will know if the security of that system its going to get better or its going to get worse and, very important, what its happenning.

Babel Enterprise uses a pragmatic point of view and tries to evaluate those points that represent a security risk and could be improved by intervention of the administrator. Babel Enterprise is Free Software, so its very flexible because has an open API and all internal details to allow advanced users to adapt to any imaginable audit check, without limits.

Babel Enterprise its a non-intrusive tool, so absolutely no change is made in your systems. Babel Enterprise only run so many tests as you need and give you the results in a detailed way, including a final numeric Security Indicator.

Babel Enterprise agents has versions to run in the last versions of Microsoft™, like Windows 2003, Windows XP, and the more common Unix systems, like Solaris™ 9, AIX™ 5.1, SUSE GNU/Linux 9 ES and Debian/Ubuntu Dapper, but Babel Enterprise agents could be very easily adapted for another versions and other similar systems, like BSD systems or HPUX™).

Babel Enterprise is Free Software. It has a public source repository (Subversion). All documentation has been generated using Free Standards, like DocBook SGML, and edited using Free Software (eMacs, OpenJade). WEB page for the project is http://babel.sourceforge.net. Also we have a small comunity of power users at http://www.openideas.info.

Know Base project consists of knowledge, document, and project management tool.

Know Base is a Web-based knowledge management system. It allows users to share files and projects across multiple business divisions.

A unique notification system alerts users when projects are modified, or when new projects are added that match their search terms.

Exception::System is the exception class for system or library calls.

SYNOPSIS

# Loaded automatically if used as Exception::Bases argument
use Exception::Base
Exception::System,
Exception::File => { isa => Exception::System };

try Exception::Base eval {
my $file = "/notfound";
open FILE, $file
or throw Exception::File message=>"Can not open file: $file",
file=>$file;
};
if (catch Exception::System my $e) {
if ($e->isa(Exception::File)) { warn "File error:".$e->{errstr}; }
if ($e->with(errname=>ENOENT)) { warn "Catched not found error"; }
}

This class extends standard Exception::Base with handling system or library errors. The additional fields of the exception object are filled on throw and contain the error message and error codes.

FIELDS

Class fields are implemented as values of blessed hash.

errstr (ro)

Contains the system error string fetched at exception throw. It is the part of the string representing the exception object. It is the same as $! variable in string context.

eval { throw Exception::System message=>"Message"; };
catch Exception::System my $e
and print $e->{errstr};

errstros (ro)

Contains the extended system error string fetched at exception throw. It is the same as $^E variable.

eval { throw Exception::System message=>"Message"; };
catch Exception::System my $e and $e->{errstros} ne $e->{errstr}
and print $e->{errstros};

errno (ro)

Contains the system error number fetched at exception throw. It is the same as $! variable in numeric context.

eval { throw Exception::System message=>"Message"; };

errname (ro)

Contains the system error constant from the system error.h include file.

eval { throw Exception::System message=>"Message"; };
catch Exception::System my $e and $e->{errname} eq ENOENT
and $e->throw;

METHODS

stringify([$verbosity[, $message]])
Returns the string representation of exception object. The format of output is "message: error string".

eval { open F, "/notexisting"; throw Exception::System; };
print $@->stringify(1);
print "$@";

Nelisys project is Open Source Web-based Management System, to manage and monitor system and network including Router, Switch, Wi-Fi Access Point, Server, Networking services, etc.

There are performance and fault management function.