ISPConfig 3.1 Manual

  On more than 400 pages, it covers the concept behind ISPConfig (admin, resellers, clients), explains how to install and update ISPConfig 3.1, includes a reference for all forms and form fields in ISPConfig together with examples of valid inputs, and provides tutorials for the most common tasks in ISPConfig 3.1. It also lines out how to make your server more secure and comes with a troubleshooting section at the end. Read more
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Installation instructions for ISPConfig 3

  The recommended Linux distribution for ISPConfig 3 is Debian Linux. The easiest way to install ISPConfig is to use the Autoinstaller: If you prefer the manual installation, have a look at the installation guides below.  

ISPConfig 3 in a Multiserver- and Cluster environment

ISPConfig auto installation scripts

Distribution upgrade on ISPConfig servers


Using multiple PHP versions

Updating ISPConfig 3

Webmail with ISPConfig 3

ISPConfig 3 FAQ

Bugtracker and GIT access details

Developer Documentation

Other installation tutorials