CPanel

From Wikipedia, the free encyclopedia

The correct title of this article is cPanel. The initial letter is shown capitalized due to technical restrictions.
cPanel

Screenshot of cPanel
Developer: cPanel, Inc.
Latest STABLE build: 10.9.0-S7965 / 15 March 2007
Latest RELEASE build: 10.9.0-R7965 / 15 March 2007
Latest CURRENT build: 10.9.0-C7924 / 14 March 2007
Latest EDGE build: 11.1-E7958 / 16 March 2007
Latest DNSONLY build: 10.8.2-D74 / 4 May 2006
Latest BETA build: 10.9.0-B7922 / 14 March 2007
Platform: Linux, BSD
Use: Control Panel
License: Proprietary
Website: www.cpanel.net

cPanel ("Control Panel") is a graphical web-based web-hosting control panel, designed to make administration of websites easy. cPanel handles all aspects of website administration in its interface. The software, which is proprietary and distributed by cPanel Inc., is designed for use by commercial web hosting services, so the company does not offer a reduced-cost personal use license; however, owners of non-profit organisations such as educational institutions and charities can request a license at no charge. Reduced prices are frequently available from dedicated-server companies, who install it along with the operating system.

cPanel runs on a number of popular RPM-based Linux distributions, such as SUSE, Fedora, Mandriva, CentOS, Red Hat Enterprise Linux, and cAos, as well as FreeBSD. Preliminary support for Debian is claimed, although this version has been in "beta" state for several years, and is not supported. cPanel is commonly accessed on ports 2082 and 2083 (for an SSL version). Authentication is either via HTTP or web page login.

Contents

Processor: 266 MHZ or faster
RAM: 65MB+, 1GB+ when hosting many sites
HDD space: 10GB plus

cPanel also requires a fresh operating system installation

To the client, cPanel provides front-ends for a number of common operations, including the management of PGP keys, crontab tasks, mail and FTP accounts, and mailing lists.

Several add-ons exist for an additional fee, the most notable being Fantastico, a bundle of scripts which automate the installation of, but not the update of (see article), web applications such as SMF, phpBB, Drupal, Joomla, TikiWiki, Moodle and over 50 others.

Unlike some other web hosting control panels, cPanel manages some software packages separately from the underlying operating system, applying upgrades to Apache, PHP, MySQL, and related software packages automatically. This ensures that these packages are kept up-to-date and compatible with cPanel, but has become a cause for consternation to some, as it becomes difficult to easily install newer versions of these packages.

Screenshot of root WHM
Screenshot of root WHM

WebHost Manager (WHM) is a web-based tool used by server administrators and resellers to manage hosting accounts on a web server. WHM listens on ports 2086 and 2087 by default.

As well as being accessible by the root admin, WHM is also accessible to users with reseller privileges. Reseller users of cPanel have a smaller set of features than the root user, generally limited by the server administrator, to features which they determine will affect their customers' accounts rather than the server as a whole. From WHM, the server administrator can perform maintenance operations such as compile Apache and upgrade RPM's installed on the system

Several builds of cPanel are available, and a server administrator can choose what build they'd like to run.

EDGE is the "bleeding edge" version of cPanel. It contains all the newest features, but has not undergone much testing. EDGE is not normally used on production servers, although some people use it on development/testing systems.

CURRENT builds are like EDGE versions, except they've undergone testing in a production environment

RELEASE builds are the preferred builds to run. While they are quite stable, they don't contain the latest features. On a default installation of cPanel, the RELEASE build will be installed.

STABLE builds are very stable, but don't contain the latest features or bug fixes. This build is normally not used, as it is usually too old to be useful.

The specific version numbers for the latest builds of cPanel can be found at http://layer1.cpanel.net/. Their change log can also be found on that page. It is important to note that changes propagate through their builds from EDGE to CURRENT to RELEASE to STABLE. New features can be found by looking at the EDGE changes which will later be pushed to the rest of the builds.

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This article has been tagged since December 2006.
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