i bought the previous version of ISPConfig 3 manual twice for 10 pounds in total. can i have the updated ISPConfig 3 manual for free? thanks. my ISPConfig 3 is installed/configured under Ubuntu server (there are several CMS websites installed in the same server as well). I have another web application needs to be installed under CentOS server. Both of these two servers (Ubuntu and CentOS servers) are behind a LAN (it is through a router and one public static IP address to connect to the WAN). For the web application installed in this CentOS server, can I setup, configure or host this web application in this ISPConfig 3 Ubuntu server? How if yes? If not, how can i easily resolve the hosting issue for this CentOS server?