Raspian Linux
NTP - Synchronize time
Network Configuration
Apache2 Web Server
Access to GPIO
SSH Client and Server
Squid proxy
Application
https://extremeshok.com/1081/raspberry-pi-raspbian-tuning-optimising-optimizing-for-reduced-memory-usage/
http://linuxg.net/how-to-setup-static-or-dynamic-ip-addresses-on-debian-based-linux-systems/
http://elinux.org/RPi_Setting_up_a_static_IP_in_Debian
http://raspberrypi.stackexchange.com/questions/311/how-do-i-backup-my-raspberry-pi
http://www.clearfoundation.com/component/option,com_kunena/Itemid,232/catid,28/func,view/id,59363/limit,10/limitstart,10/
http://www.akadia.com/services/ssh_test_certificate.html