System Software

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System related Free Open Source Software consists mainly of the underlying non-user facing components - the operating systems, middleware, and utilities. The following system software is all FOSS, in most cases the result of at least a decade of continual development and improvement.

Automation

• BitNami

• ControlTier

• Puppet

Backup

• Amanda

• Bacula

Bug Tracking & Management

• BugZilla - Heritage back to the old Mozilla Netscape days.

• Entomologist - Coordination of multiple bug trackers.

Cloud Computing

• See Cloud Computing

Collaboration Server

• OpenFire

Compression

• 7-Zip

Configuration Management

• Git - developed by Linux creator Linus Torvalds.
• Subversion

Databases

• Druid

• MariaDB - MySQL replacement.

• MySQL

• PostgreSQL - enterprise scalability.

• SQLite

Database Management

• Adminer

• phpMyAdmin

Data-Center Management

• Cfengine

• OpenQRM

Directory Services

• OpenLDAP

Disk Partitioning

• GParted

Distributed Computing

• Hadoop - very large data processing.

Domain Name System (DNS)

• BIND - runs the Internet.

Drivers

• Linux drivers

Email

• ClamAV

• DSPAM

• Dovecot

• Postfix

Enterprise Service Bus

• Mule

Fax

• HylaFax

File Encryption

• FreeOTFE

• TrueCrypt

File & Print

• Samba

File Synchronization

• Unison

FTP

• CyberDuck

• FileZilla

• WinSCP

Geographic Information Systems

• GDAL

• PostGIS

Groupware Synchronization

• SyncEvolution - For synchronizing Evolution calendar, contacts, notes, tasks.

Messaging Systems

• RabitMQ - Application messaging.

Multimedia

• Red5 server - Flash emulator.

• Tizen - device API for HTML5.

• XMBC

Natural Language Processing (NLP)

• NLTK

Networking

• Linux Wireless - IEEE-802.11 subsystem.

Network Management

• Nagios - alerting.

• Hyperic HQ

• OpenNMS

Network Monitoring

• WireShark - packet inspection.

Operating Systems

• Linux

• OpenBSD - Unix variant.

• Ubuntu

Operating Systems Embedded

• OpenEmbedded

• Yocto

Operating System Emulation

• Wine - Windows on Linux

Operating System Virtualization

• CoLinux

• OpenVZ - Linux kernel parallelization.

• VirtualBox

PDF Writers

• PDFCreator

Portals

• Liferay

Robotics

• Urbi

Search

• Lucene

Security Software

• Kerberos

• nmap

• OpenVPN

• CyaSSL

Smartphones

• Android - from Google.

• Funambol - integration engine.

Spam and Anti-Virus Protection

• Amavisd

• ASSP

• ClamAV

• ClamWin

• dkim-milter

• domainkeys-milter

Storage Management

• FreeNAS

• Gluster

• Nimbus.IO

System Cloning

• CloneZilla

• FOG

System Integration

• Chef

Systems Management

• Spacewalk

Virtual Desktop

• FreeNX - original.

• neatx - from Google.

• Remmina

• SPICE - from Redhat.

• x2go

Web Server

• Apache Web Server - one of the first great open source successes.

Wireless

• Kannel

• OpenBTS