- JitterBug is a Web-based bug tracking tool originally written to manage the huge volume of bug reports and queries the Samba Team receives. It is now used by a number of other projects. The program is available in English and French. JitterBug receives bug reports via email or a web form. Authenticated users can then reply to the message, move it between different categories or add notes to it. Users can add arbitrary notes to each message, and an audit trail is kept for each message showing who did what. Users can request email notification of changes to files or directories. JitterBug is like a communal web based email system; the whole system is a single C program running as a CGI script and fully HTML 3.2 compliant. The program uses your server's built-in authentication, and has a built in SMTP mail client for sending replies and notifications.
- LibSysCTr intercepts system call functions on a GNU/Linux system. Process monitoring and sandboxing are just two of its potential uses. LibSysCTr uses the ptrace(2) functionalities by monitoring and reporting events to the library caller. LibSysCTr is callback driven, which means the user initializes the library with systr_init_library(), registers the system calls he wants to monitor with systr_trace_syscall(), and calls systr_run() to start receiving events in the form of callback invocation. For each intercepted system call, two calls to the registered callback function are performed: one during the system call entry, before the system call iteself will be executed by the kernel, and one after the kernel has processed the system call (right before returning the userspace). Utility functions are supplied to, retrieve information about the process, get/set the system call parameters, and read/write the monitored process address space.
- Mantis is a PHP/MySQL-based bugtracking system. It is extremely easy to deploy and customize, and features one of the simplest and cleanest interfaces of any tracking tool available. It supports multiple projects and email notification, and is localized for over 18 languages.
- Open Ticket Request System
- OpenTRS is a free and open source Ticket Request System with email and phone interfaces and many other features to manage customer telephone calls and e-mails.
- OpenHatch provides a way for free software projects to offer mentorship to new developers. Projects are able to register "bitesize" bugs and offer guidance. New developers are able to browse bugs and go on "training missions".
- osTicket is a widely-used free software and open source support ticket system. It seamlessly integrates inquiries created via email, phone and web-based forms into a simple easy-to-use multi-user web interface. Manage, organize and archive all your support requests and responses in one place while providing your customers with accountability and responsiveness they deserve.
- PRepS is a problem reporting and tracking system similar to Gnats, only simpler to use. Currently, PRepS is best used with smaller projects or projects where all developers have access to the same network. For more "remote" projects, Gnats may be a better choice. It was designed for tracking pproblems with software, but can also be used for tracking other kinds of problems or tasks.
- pg Request Tracker 2/3 Report is a set of tools for generating reports for Request Tracker 2/3 (RT 2/3). Currently, it only supports the Postgres ("pg") and MySQL backends.
- phpBugTracker is an attempt to copy the functionality of Bugzilla while providing a codebase that, by using templates and a database abstraction layer, is independent of the database and presentation layers. Current features include bug history (changes over its lifetime), the ability to restrict projects to certain groups of users, the option to store passwords encrypted in the database, HTML templates for changing the look of the interface, flexible bug search capabilities, localization (status messages in your native language), file attachments for bugs, anonymous browsing of bugs, links to a cvs web interface from bug comments, and bug dependencies.
- 'phpSupport' lets users submit trouble tickets through a Web form or an email gateway. It gives the option of emailing the creator of a trouble ticket when updating or closing it. All tickets and information are stored in a MySQL database.
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