Is my unattended upgrades working?

[Florian Lindner <mailinglists@xgm.de>]

Hello,

on Debian Wheezy I try to use the included unattended upgrades script for 
security updates:

root@astarte ~ # cat /etc/apt/apt.conf
APT::Install-Recommends "0";
APT::Install-Suggests "0";

APT::Periodic::Update-Package-Lists "1";
APT::Periodic::Verbose "2";
APT::Periodic::Unattended-Upgrade "1";


root@astarte ~ # ll /etc/cron.daily 
-rwxr-xr-x 1 root root 14985 Jun  4 11:33 apt.dpkg-dist*


but the last line in /var/log/unattended-upgrades/unattended-upgrades.log is 
from 2013-10-25 when I executed apt.dpkg-dist manually.

Why is it not working like it should?

Thanks!

Florian