I set up an Ubuntu server in VirtualBox following this guide: http://www.howtoforge.com/perfect-server-ubuntu-9.04-ispconfig-3 Everything is okay, except that "quotacheck -avugm" gives error "quotacheck: Cannot find filesystem to check or filesystem not mounted with quota option.". I wasn't able to solve it despite the error being discussed in many topics on this same forum. But no matter since I don't really need quota in the production server either. Actual problem is ISPConfig 3 itself. I created two clients one website each. Now, the first client has same hostname as I set up in /etc/hosts and /etc/hostname. Second client uses different hostname. Now, when I try to access the first website by hostname, it leads me to the default apache site. And when I try to access the second website by hostname, it gives me custom ISPConfig error message "ERROR 403 - Forbidden!". What I have missed? What do I need to do to have hostnames directed to correct directories? Thanks in advance. Edit: I got second hostname working, it was a silly error from my part. However, first hostname still directs to default apache site. Edit 2: quotacheck error was because I was using ext4 instead of ext3. I switched to ext3 and quota is now usable, although it does suggest using journaled quota instead.