Directory of http://ce.allnet.de/FriendlyElec/Duo2/

(/ftp/pub/allnet/ce/FriendlyElec/Duo2)
Any password will work

drwxrwxrw-    2 135112     124793           4096 Jan 10  2020 .
drwxrwx---   15 127675     124793           4096 Jun 22 12:23 ..
-rwxrwxrw-    1 135112     124793         173994 Jan 10  2020 Friendly_Duo2_CE.PDF