The bug tracking system is one of the essential things of every IT Projects. It is very important for the Software Development Project. Here are a few open source bug system to track the work and also the problems of the system, network and database. Here are a few Open Source Bug Tracking systems. If you are software personal, choose one out of the list, though the list is not exhaustive one. But you can pick one from the list as these are highly recommended. If you are a busy person, just go for the list. Bugzilla: Bug Tracking System This is a web based bug tracker and the testing tool for the general purpose. It is stable and dynamically maintained bug system which is widely accepted by the Open Source Projects. It works on various databases like Oracle and MySQL. Follow the steps to install Bugzilla and get started. Mantis Bug: Tracking System Mantis Bug tracking system provides a subtle balance between power and simplicity. This bug tracker can be started within a minute for the project management at the same time work in partnership with their teammates and clients effectively. Once the Mantis is picked up by you, it is guaranteed that you will never return. It is written in PHP and can be operated on a range of databases such as MySQL PostgreSQL. MS SQL. Redmine: Bug Tracking System Redmine, in Ruby on Rails, offer tracking issues, as well as provide full project features of management for multiple projects. With flexible role based access control it can manage subproject support. Trac: Bug Tracking System Written in Python, Trac is an issue tracking, and offers wiki, and incorporation to subversion. The web interface is very basic and simple to use. This also provides project features of management as well as milestone tracking and roadmap Request: Bug Tracking System Written in RT Perl, this is a normal management of issue. It can be used as a ticket tracking system. It is integrated with LDAP authentication. Fossil: Bug Tracking System Written in C language Fossil makes use of SQLite database. Besides tracking of bugs, it affords Wiki. Installation of the system is much simple for its sole workable which contains the whole thing one requires to get fossil up and running.