I have an already established web server with all my hosting software already configured, It's running nginx, php-fpm, memcached, mysql, postfix, letsencrypt, and thats about it I think. My website is a 110 gb monstrosity and it's the only site on a dedicated server. I'd like to install something that gives me the ability to manage it visually via control panel, but I don't want to wipe everything if I don't have to. Is there a way to install ISPConfig and allow it to utilize and manage my existing configuration without wiping everything?
Probably not. There are clear instruction sets on how to setup a server and prepare it for ISPConfig..