Popular CMS systems

Below are some popular CMS systems:

CMS	Operating System	Language	Database	License Agreement
Opencms	Unlimited	Java 1.3 +	MySQL, Oracle, and MSSQL	GNU General Public License (GPL)
Phpnuke	Linux/Unix	PHP	MySQL, postgre, msql, Interbase, Sybase	GNU General Public License (GPL)
PostNuke	Unlimited	PHP	MySQL, postgre, msql, Interbase, Sybase	GNU General Public License (GPL)
Ezpublish	Linux/Unix	PHP	Any SQL database	GPL or commercial (two licenses are available)
Webgui	Unlimited	Perl 5.6 +	MySQL, postgre	GNU General Public License (GPL)

The open-source CMS frameworks and products listed in oscom are as follows:

	Project				License
	Apache cocoon				Apache Software License
	Apache jackrabbit				Apache Software License
	Apache slide				Apache Software License
	Axkit				Apache Software License
	Daisy				Apache Software License 2.0
	Jpublish				Apache-style license
	Krysalis Foundation				Lgpl
	Mason				Artistic license (Perl)
	Midgard				GNU lesser General Public License (lgpl)
	Midgard Lite				GNU General Public License (GPL)
	Openacs				GNU General Public License (GPL)
	Slither				GNU GPL
	Steam				GPL
	Tea trove				Tea software license (based on Apache)
	WebDAV				IETF proposed standard
	Xaraya				GNU General Public License
	Zope				Zope Public License (zpl)

Content Management Systems

	Project				License
	Aegir CMS				Lgpl
	Apache lenya				Apache Software License
	Ariadne				GNU GPL
	Back-end				GPL
	Bitflux				GNU General Public License (GPL)
	Bricolage				BSD license
	Callisto				GPL (General Public License)
	Campsite				GNU General Public License
	Cocoblog				Apache Software License 1.1
	Cofax				Cofax software license (based on Apache)
	Dbprism CMS				Apache Software License
	Drupal				GNU General Public License
	Elevateit				GPL
	Envolution				GPL
	EZ publish				GPL
	Jahia CMS and Portal Server				Jahia collaborative open source license
	Komplete Lite				GPL
	Kontentor				GPL (GNU Public License)
	Krang				BSD
	Lifecms				GPL
	Magnolia				Lgpl
	Mambo				GNU/GPL license
	Mmbase				Mozilla Public License
	Mysource				Apache license
	Nukes				Lgpl
	Nuxeo CPS				GPL
	Omegacms				BSD-style license
	Opencms				GNU lesser General Public License (lgpl)
	Phpcms				GNU General Public License (GPL)
	PHP-Nuke				GNU General Public License (GPL)
	Phpslash				GNU General Public License (GPL)
	Plone				BSD license
	PostNuke				GNU General Public License (GPL)
	Red Hat CCM				CCM resp. IBM Public License
	Silva				Apache like software license
	Tiki				GNU lgpl license
	Typo3				GPL
	Webeditor				???
	Webgui				GNU GPL
	Xims				Perl artistic license/GPL
	Xoops				GNU GPL
	Zeit CMS				GPL

License Agreement

Open source code does not always mean free. Some license agreements allow free use of software for non-commercial purposes, while others (such as GPL) are free, but source copyrights need to be identified. Otherwise, you must purchase a license. Measure your application and select the most cost-effective one.

When evaluating which tool to use, you should also consider how the CMS is used and who the end user is. The usage of CMS is the key. It determines how to use the CMS according to the Basic license agreement.

Supported

Multiple support means are a major feature of open-source products. For example, phpnuke and its derivative products do not have commercial support, but users and developers are in such a wide range of contact, so community support is quite reliable. However, the characteristics of the project and its installation need more traditional support, such as Event-based fault countermeasures.

I suggest you examine the supported methods and make sure they are suitable for you. No matter which CMS you choose, there may always be some faults. Unless you can debug the code yourself, it is critical to support your implementation.