open source content trial software / shareware for linux

AXIGEN Mail Server Office Discount is an affordable, reliable and secure Linux and FreeBSD mail server intended for home users and small companies. AXIGEN Office Discount, offering integrated mail services and basic support, can successfully replace several open source applications and is available for 15 users.
This is a full-featured version, available free of charge, part of a time-limited promotional offer. This type of license offered is perpetual and you will get to keep it even if this promotion expires.
AXIGEN is available for many Linux distributions (Ubuntu, Gentoo, Redhat/Fedora Core, Slackware, Debian, SUSE, Mandrake/Mandriva), for BSD platforms and for Solaris.
Main AXIGEN services:
1. Mail transfer is ensured by SMTP / ESMTP modules, which include a powerful Mail Processing engine with an API (Application Programming Interface) for custom filtering.
2. Message retrieval is performed through IMAP4 or POP3 protocols with special tools for connectivity control and host authentication management.
3. The Webmail module provides improved security and efficiency and allows users anywhere on the Internet to access and send mails from their Web browsers.
All services are controlled from centralized WEB / CLI Administration, enabling full control of the email traffic.
AXIGEN Mail Server Specifications:
Mail Services
- SMTP/ESMTP, POP3, IMAP4 and Webmail
- SSL/TLS encryption
Connectivity and architecture:
- Multithreaded engine with module thread control
- Simultaneous resource access
- Mail storage with index based access
- In depth connection control
- Firewall-like communication rules
- User authentication: plain, login, CRAM MD5
Server Security
- Multilevel filtering system
- Integration with 16 Antivirus and AntiSPAM applications
- Script interface for external custom filters
Version restrictions: Trial expires in 30 days

Red Hat Enterprise Linux v.4, released in February 2005, provides significant technology enhancements over the v.3 release. Areas of specific development include improvements in security capabilities, increased server performance and scalability, and enhanced desktop capabilities?all while ensuring a high level of compatibility with prior releases.
Red Hat Enterprise Linux supports a wide range hardware and software applications, and is the worlds leading enterprise-focused Linux environment.
The following section outlines a few of the major new features in Red Hat Enterprise Linux v.4:
Linux 2.6 kernel infrastructure
Red Hat Enterprise Linux v.4 provides the most stable and robust commercial product based on the Linux communitys 2.6.9 kernel. Open source projects such as Fedora provided an environment for the Linux 2.6 kernel to mature significantly during 2004.
As a result, the Red Hat Enterprise Linux v.4 kernel offers numerous improvements over earlier kernels, including many enhanced algorithms and features:
- Generic logical CPU scheduler: Handles multi-core and hyperthreaded CPUs.
- Object-based Reverse Mapping VM: Improved performance in memory constrained systems.
- Read Copy Update: SMP algorithm optimization for operating system data structures.
- Multiple I/O schedulers: Selectable based on the application environment.
- Enhanced SMP & NUMA support: Improved performance and scalability for large servers.
- Network interrupt mitigation (NAPI): Improved performance for heavy network loads.
Improved storage and file system capabilities
Numerous enhancements have been incorporated into Red Hat Enterprise Linux v.4 that improve the scalability and performance of the data storage subsystems, including:
- Ext3 performance: Block Reservations and Hash Tree Directories improve the performance of read/write I/O and directory scanning operations.
- Ext3 scalability: Dynamic file system expansion and file system sizes up to 8TB are now supported.
- Logical Volume Management: A comprehensive update to the LVM provides new features such as read/write snapshots and transactional metadata updates, along with a flexible new management GUI. Mirroring and enhanced multipathing are scheduled for delivery by mid 2005.
- Scalability: Enhanced storage LUN management makes it possible to configure much larger storage subsystems.
- Automounting: The inclusion of AutoFSv4 provides sophisticated device access control, supporting features such as browsable mounts and replicated servers.
- Cost reduction: Support for Serial ATA disk storage provides increased performance, higher densities, and reduced cost per megabyte over traditional IDE devices.
New security capabilities
Provision of sophisticated security capabilities has been a specific development focus of the Red Hat Enterprise Linux v.4 release. New features:
- Mandatory Access Control: Security Enhanced Linux (SELinux) provides a MAC infrastructure that complements the existing Discretionary Access Control security features provided by the standard Linux environment. In a MAC-based environment, application capabilities and privileges are set by predefined policies and enforced by the kernel. This prevents errant applications from compromising system security.
- Memory management enhancements: Several features, including Exec Shield and Position Independent Executables, combine to prevent applications from being exploited by attacks such as buffer overflows.
- Compile and runtime consistency checking: New buffer validation techniques in the GCC compiler and Glibc library greatly reduce the risk of faulty applications being compromised.
Improved desktop capabilities
Significant emphasis has been placed on providing a feature-rich, easy-to-use, desktop environment for all Red Hat Enterprise Linux family members (including Red Hat Desktop). A brief summary of new features:
- Personal productivity: Advanced user capabilities are provided by the OpenOffice.org productivity suite, the Firefox web browser and Evolution email client
- Plug-and-play device support: Easy handling of devices such as USB disks and digital cameras (as well as photo management applications such as gThumb)
- Multimedia: Applications for audio, video, and streaming content such as RhythmBox, HelixPlayer, Totem, and SoundJuicer
- User environment: GNOME 2.8 provides numerous enhancements for a more consistent graphical look and feel. Comprehensive management tools (e.g. printer and network management and VNC-based application session sharing) and utilities (e.g. Gaim instant messaging, and GIMP image processing) combine to provide a complete and highly functional user experience.
- Interoperability: Technologies that allow user login authentication with Microsoft Active Directory, NTLM authentication for web-based applications, Evolution mail client access to Windows Exchange Servers
- IIIMF: The Internet/Intranet Input Method framework provides the next-generation multilingual Unicode input method framework. It offers many features, such as full Unicode support and the ability to run multiple concurrent language engines.
Miscellaneous features
As a major new release, almost every aspect of Red Hat Enterprise Linux has been enhanced. Some of the more important improvements:
- Compatibility with prior releases: Red Hat Enterprise Linux v.4 includes compatibility libraries that enable most v.3 and v.2.1 applications to continue to run without modification.
- Languages: Focused on international standards, such as OpenI18N and GB18030, Red Hat Enterprise Linux has documentation and software available in 15 languages: English, Japanese, German, Brazilian Portuguese, Korean, Italian, French, Simplified Chinese, Traditional Chinese, Spanish, Devnagari, Bangla, Punjabi, Tamil, Gujarati.
- Auditing: In an update planned for mid-2005, a new auditing facility will be available that provides an open, bidirectional socket interface that can be used by auditing applications. It provides comprehensive auditing capabilities for SELinux and standard Linux events.
- File serving: Provision of NFSv4 provides features such improved security, operation coalescing and integrated file locking, while Samba provides easy access to Microsoft Windows printers and file shares.
- Software development: The latest GCC 3.4 compiler toolchain, and a technology preview of the forthcoming GCC 4.0 toolchain, are provided. These offer standards-compliant C/C++ and Fortran 95 development environments.
- Advanced configuration and power interface: Support for the ACPI standard enables a wide range of power management capabilities (battery monitoring, automated power down, suspend), and provides a foundation for increasingly sophisticated features in the future.
- Extras: Optional software is provided on the Red Hat Enterprise Linux Extras CD and Red Hat Network channel. This includes features such as additional desktop applications (e.g. Adobe Reader, Macromedia Flash), Java environments, and printroom-quality Agfa/Monotype fonts.
Main features:
Server features summary
- Databases - Leading open source databases: PostgreSQL, MySQL
- Development - Environments for C, C++, Java, Fortran with Perl, Python, CVS and Emacs
- Engineering - Computational tools including blas, pvm, and lam
- File servers - FTP, NFS, and Samba (CIFS)
- Mail server - IMAP/POP servers with Cyrus, Sendmail, spamassassin
- Networking - Complete suite of network servers and firewall
- Printing - CUPS/lpr printing systems
- Security - Extensive features including SSL, IpSec, MAC/DAC
- Web server - Apache server with numerous mod/php plugins
Client features summary
- Document preparation - OpenOffice.org office suite 1
- Extensive Microsoft interoperability
- Laptop power management - APM/ACPI
- Mail - several clients including Evolution
- Multimedia support - applications for multiple audio/video formats
- Plug-and-play device support
- RDP terminal services
- Remote desktop sharing/collaboration
- User interface - GNOME-based with optional KDE
- Web browsing - Firefox
- Wireless support
- X Windows system

Big Faceless Report Generator project is a Java application for converting source documents written in XML to PDF.
Built on top of the Big Faceless PDF & Graph Libraries, the Report Generator combines these features and wraps an XML parser around them.
Using JSP, ASP, XSL, or similar, creating dynamic PDF documents directly from a database is now as easy as HTML.
Main features:
- HTML-style Tables - auto-sized nested tables with full control over padding, margins and borders
- Use cascading CSS2 stylesheets to control look and feel
- Create inline graphs and charts with XML, direct from the database
- Includes a servlet and a servlet filter for simple generation of PDFs from XML or JSP pages.
- Auto pagination of content with page headers and footers
- Familiar HTML syntax - < a >, < ul >, < p >, < table >, < td > and so on - simpler and faster than FOP
- All the features of our PDF library - Unicode support, Encryption, TrueType fonts, Barcodes and more

Scheture project is our schematic capture package. The package is built atop the same database as all of the other Stabie-Soft products. The schematic editor handles iterated instances, bused pins and wires, parameter passing etc.
The latest production version of Scheture is 3.3.1, please download it if your using an older version to get the latest updates and bug fixes.
Perhaps one of the best features is schetures ability to generate a schematic (and symbols) from netlist formats such as verilog or spice. Take it for a 30 day test drive and see if it is right for you. See the pricing page for details on our free 30 day evaluations.
Main features:
- User control of all object colors and fonts.
- Control of position, size, font, color of property display of symbols.
- A specific placement of a symbol may override property display position, size, font or color.
- Implicit connection of symbol pins by name possible for specific schematics.
- In the schematic here, note the bulk connections are made with this type of connection. No explicit connection to the bulk is drawn, but all unconnected bulks will be connected by name in this schematic only.
- Implicit global connection of symbol pins possible.
- Symbol properties may be set for display only (IE ignored by netlister).
- Symbol generator.
- Net tracing thru the hierarchy.
- Property values "push" down so in context display of properties available.
- Extractor.
- Hierarchical verilog out.
- Hierarchical spice out.
- Hierarchical smash out. (For Dolphins SMASH mixed mode simulator).
- Netlist to schematic generator to build a schematic from a netlist.
- Sample of nor3 and adder. Both these schematics were built completely automatically from spice netlists. Note verilog can also be auto generated for cross probing or visualization of hdl.
- Parasitic net schematic generator to visualize an extracted nets R/C network.
- Interfaces with Mentors RVE product. Cross-probe between layout & schematic.
- Interfaces to open source waveform viewer GWave.
- User specified port order available for spice subcircuits and verilog primitives.
- Plotting, and includes a command to plot all schematics in a library.
- Sample library of symbols provided.
- Free upgrades after purchase
Enhancements:
- This release adds a number of minor improvements.
- These include a new symbol popup menu to place standard and recently placed symbols quickly.
- Also new are real arc/circle/ellipse shapes for more cosmetically attractive symbols.
- Previously, these shapes were constructed from lines and polygons.
- Wires can now be named with iterators such as "{N1,N2}(3)" to compactly represent the name "N1,N2,N1,N2,N1,N2".
- More complex iterators are supported as well.
- A number of new options have been added to the "check & save" command to beautify the schematic during the "check & save" process.

Plastic SCM is a full-featured Software Configuration Management system that tracks changes to source code and any digital asset over time. The software improves the visibility and management of parallel development, ensuring optimal team collaboration with a user-friendly interface and advanced visualization.
Version restrictions:
- 30 days trial
- maximum of 5 users
Enhancements:
- A query system, branch explorer, SQL Server backend support, PowerBuilder integration, CruiseControl support, and a JDeveloper plugin.