I have installed backuppc from the repositories. I confirmed to use Apache and noted the random password for the GUI user. There was no install error. When I tried to login to
http://myhost.mydomain/backuppc
I did get a password box but after the password box there was not the BackupPC GUI but a popup window
You have chosen to open:
which is: BIN file (6.1 KB)
from: http://myhost.mydomain
Would you like to save this file?
I had a running apache2 on the server. I am not sure how the installer gets its page included into Apache. I just saw and /etc/backuppc/pc/apache.conf file, but did not understand what it does. There is cgi content in /usr/share/backuppc/cgi-bin, but it does not seem to be available to Apache.
I did try the install on a other machine, also Xubunut16.04, but I had the same result.
Any ideas? Thanks CatMan