http://www.enki.co/
Managed cloud computing. A slicehost server for about $50 is roughly equivalent to $113 with enki. Not outrageous for a managed service, depending on how deep the management goes.
https://wiki.ubuntu.com/UncomplicatedFirewall
Very simple guide to using ufw to create firewall rules. `ufw allow ssh/tcp && ufw allow http/tcp && ufw allow https/tcp && ufw enable && ufw status` done. :-)
