I assume you are talking about `unattended-upgrades`. If it is already installed, you may need to reconfigure it with `dpkg-reconfigure unattended-upgrades`. <div class="gmail_quote">2012/5/16 Thorsten Göllner <<a href="mailto:tg@ovm-group.com" target="_blank">tg@ovm-group.com</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi, when installing ubuntu server 12.04 I was asked, of I want to active the automatic security update (service). I said "no". How can I install it now? Is it a specific apt-package? Thanks for any hint -Thorsten- -- ubuntu-server mailing list <a href="mailto:ubuntu-server@lists.ubuntu.com" target="_blank">ubuntu-server@lists.ubuntu.com</a> <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-server" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-server</a> More info: <a href="https://wiki.ubuntu.com/ServerTeam" target="_blank">https://wiki.ubuntu.com/ServerTeam</a> </blockquote></div>