Double posting in never appreciated in these forums, as it makes it hard for others to participate and/or follow the discussion.
You server "type" is either an instance of apache 1.3 or apache 2.x running under the Debian Linux operating system.
Some additional info on DH servers can be found in this DH wiki article
You tell which machine your server is running on by looking at the prompt in the shell, or by checking the Control Panel, where the names of your webserver is available under "Account Status" link in the upper right corner of the information screens.
Additional information about your particular server configuration can be obtained programmatically (phpinfo() is a start).