I tried but is not working for me, I do have the following configuration.
ISPConfig Box IP xx.xx.xx.xa
WEB server IP xx.xx.xx.xb
DNA Server IP xx.xx.xx.xc
Mail, MySQL & slave DNA servers IP xx.xx.xx.xd
Install ISPConfig, only the php files, Install another ISPConfig with web server, but ISP Control box unable to connect with WEB server. What I am missing in here?