Here is one interpretation of the perfect Linux setup. Definitely differs a bit from mine, I can see how they might decide that this is the way to go.

This is a detailed description about the steps to be taken to setup a Debian based server (Debian Woody alias Debian 3.0) that offers all services needed by ISPs and hosters (web server (SSL-capable), mail server (with SMTP-AUTH and TLS!), DNS server, FTP server, MySQL server, POP3/IMAP, Quota, Firewall, etc.).

I will use the following software:

* Web Server: Apache 1.3.x
* Mail Server: Postfix (easier to configure than sendmail; has a shorter history of security holes than sendmail)
* DNS Server: BIND9
* FTP Server: proftpd (you could also use vsftpd)
* POP3/IMAP: in this example you can choose between the traditional UNIX mailbox format (we then use qpopper/uw-imapd) or the Maildir format (in this case we will use Courier-POP3/Courier-IMAP).
* Webalizer for web site statistics [Read the rest]