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For Server Administrators

Ajenti includes dozens of pre-made plugins that let you configure both your OS and server software. List of supported software includes Apache, BIND9, Cron, CTDB, DHCPD, NFSD, Iptables, Munin, MySQL, Netatalk, NGINX, PostgreSQL, Samba, lm-sensors, Squid 3, Supervisor.
Fast and responsive interface, low memory footprint and handy tools like file manager, terminal and code editor - everything a happy sysadmin needs.

For Developers

Ajenti also works as a rapid-development web app platform.
Create web frontends and services in a couple of minutes with a rich web UI framework and stateful application model.
Simple daemon control page, complex inventory editor - it's all equally easy to build.
Check out the documentation

For Hosting Providers

Provide your VPS and dedicated server customers with a panel like nothing they have seen before.
Completely free.

For Hardware Vendors

Quickly create web interface for your hardware or virtual appliance, should it be a NAS or a proprietary application server box.
Learn more about using Ajenti in your hardware

http://ajenti.org