Linux Servers

VMs, VPSs, not desktop although some may have light-weight GUIs.

Some secure, others very secure.

Always on or very long running

Linode

$10 a month ... not bad.

​http://semantastic.com/pywacket/index.php/Main/AboutLinode

Raspberry Pi

See Notes/RaspberryPi.

Search wiki for 'raspberry'

Single Board Computers

​http://en.wikipedia.org/wiki/Single-board_computer

​http://en.wikipedia.org/wiki/Category:Single-board_computers

​http://en.wikipedia.org/wiki/Comparison_of_single-board_computers

​http://en.wikipedia.org/wiki/Internet_of_Things -

see Security

Also See

Servers

IPTables

Security