Security never relies on some algorithm, but on the user comprehending the principles and acting sanely.
Tag: security
SSH Server Security
Some good ideas here. http://bodhizazen.net/Tutorials/SSH_security
FIX: Apt-get fails to upgrade when in batch
apt-get -y install unattended-upgrades dpkg-reconfigure unattended-upgrades from : https://wiki.ubuntu.com/Security/Upgrades