I just finished to "forge" this server and everything (almost) is ok!
I reach the ISPConfig with https://192.168.3.100:8080
and I login successfully.
I even connect to the phpmyadmin with https://192.168.3.100:8080/phpmyadmin
and everything is sweet.
If I go on 192.168.3.100 I get the "IT WORKS" so Apache2 is going well!
What I encounter is that after create a domain (and a client of course) I can access to the Ftp for this client and I can see the files too but if I put into the URL this address:
"192.168.3.100/domain.com" I got "403 Forbidden"
Just to be clear the domain I create is domain.com and is correctly in /var/www/domain.com
Where I'm mistaking?
Hope the info are enough to let be helped!