Problem connecting to Webmin – Ask Ubuntu http://askubuntu.com/questions/78627/problem-connecting-to-webmin
Reboot a Server from Command Line? – Ask Ubuntu http://askubuntu.com/questions/397502/reboot-a-server-from-command-line
How to Uninstall Software Using the Command Line in Linux http://www.howtogeek.com/229699/how-to-uninstall-software-using-the-command-line-in-linux/
package management – How can I install just security updates from the command line? – Ask Ubuntu http://askubuntu.com/questions/194/how-can-i-install-just-security-updates-from-the-command-line
apt – How to list all installed packages? – Ask Ubuntu http://askubuntu.com/questions/17823/how-to-list-all-installed-packages
AutomaticSecurityUpdates – Community Help Wiki https://help.ubuntu.com/community/AutomaticSecurityUpdates