Best free administration – control panels for your server to keep your business up and running remotely.
OpenPanel is a free open source control panel. It has lots of functionality, an attractive interface and is very user friendly. OpenPanel is a platform for developers. Because it is extremely open and modular it can be utilised to control any process on a Linux server.
Webmin is a web-based interface for system administration for Unix. Using any modern web browser, you can setup user accounts, Apache, DNS, file sharing and much more. Webmin removes the need to manually edit Unix configuration files like /etc/passwd, and lets you manage a system from the console or remotely.
Sentora is designed to simplify web hosting management, it gives your clients the ability to quickly and easily manage their web hosting.
Centos Web Panel
CentOS Web Panel – Free Web Hosting control panel is designed for quick and easy management of (Dedicated & VPS) servers without of need to use ssh console for every little thing. There is lot’s of options and features for server management in this control panel.
ZPanel is a free and complete web hosting control panel for Microsoft® Windows™ and POSIX (Linux, UNIX and MacOSX) based servers. ZPanel is written in PHP and uses several open-source (or freely available) software packages to provide a secure, web hosting system.
Ajenti is python based control panel with a good performence. Ajenti is installed through your system’s package manager. Installation only takes a minute. Picks up your current configuration and works on your existing system as-is, without any preparation. Ajenti is easily extensible using Python. Plugin development is a quick and pleasant with Ajenti APIs.
Kloxo is a fully scriptable, distributed and a 100% object oriented hosting platform.
and if you want a premium software with support; i advice you to buy cpanel
cPanel is a Linux based web hosting control panel that provides a graphical interface and automation tools designed to simplify the process of hosting a web site. cPanel utilizes a 3 tier structure that provides capabilities for administrators, resellers, and end-user website owners to control the various aspects of website and server administration through a standard web browser.
In addition to the GUI, cPanel also has command line and API-based access that allows third party software vendors, web hosting organizations, and developers to automate standard system administration processes.
cPanel is designed to function either as a dedicated server or virtual private server. The latest cPanel version supports installation on CentOS, Red Hat Enterprise Linux (RHEL), and CloudLinux.. cPanel 11.30 is the last major version to support FreeBSD.
Application-based support includes Apache, PHP, MySQL, PostgreSQL, Perl, and BIND (DNS). Email based support includes POP3, IMAP, SMTP services. cPanel is accessed via https on port 2083.
Once installed, cPanel cannot be easily removed. cPanel’s FAQ states that the best way to uninstall cPanel is by reformating the server. However, uninstall guides are available online for expert server administrators who do not wish to reformat their server. Similarly, it should only be installed on a freshly installed operating system with minimal prior configuration.