Hello,
so my decision is clear, i will use apc backup-pro

Installation will be minimal, no GUI, but samba, ntp, Oracle XE 11.
apcupsd comes with CGIs files ?
Which webserver can i use to realise a webinterface?
Where to copy which files, whats the command line for the client?
Acces only in local network.

Cause i'm not fit up wit appache, do i have to use apache or is thttpd also a possible way?

Best regards