Please make sure to edit /etc/BackupPC/config.pl to suit your needs.

Add backuppc to your default startup scripts:

# rc-update add backuppc default

Then start the services, and navigate using your webbrowser to:

	http://localhost/backuppc

The default username and password are both backuppc, edit
/etc/BackupPC/authUser to change these to your preferred values using the
htpasswd2 utility, such as:

# htpasswd2 -c /etc/BackupPC/authUser backuppc

It will prompt you for a new user.  man htpasswd2 for more options.