Howtoforge posted a guide about installing ISPConfig 2 on Ubuntu Maverick Meerkat (Ubuntu 10.10)
This tutorial shows how to set up an Ubuntu Maverick Meerkat (Ubuntu 10.10) server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier POP3/IMAP, Quota, Firewall, etc. In the end you should have a system that works reliably, and if you like you can install the free webhosting control panel ISPConfig 2 (i.e., ISPConfig runs on it out of the box).The Perfect Server - Ubuntu Maverick Meerkat (Ubuntu 10.10) ISPConfig 2