Custom motd:
http://www.raspberrypi.org/forums/viewtopic.php?t=23440
Send email from linux cli:
http://go2linux.garron.me/linux/2010/10/how-send-email-command-line-gmail-mutt-789
Mutt config:
http://www.mutt.org/doc/manual/manual-3.html
Meteotux Pi:
https://sites.google.com/site/meteotuxpi/home
Pi Logswitch:
http://kiros.co.uk/blog/controlling-log-files-on-the-raspberry-pi-using-logrotate/
http://www.thegeekstuff.com/2010/07/logrotate-examples/
Simple VPN:
http://www.thegeekstuff.com/2013/09/openvpn-setup/
IP Fowarding:
http://www.ducea.com/2006/08/01/how-to-enable-ip-forwarding-in-linux/
Logwatch configs:
http://www.debianhelp.co.uk/logwatch1.htm
http://www.linux-mag.com/id/7800/
Mount FTP or SFTP:
http://www.linuxnix.com/2011/03/mount-ftp-server-linux.html
https://wiki.archlinux.org/index.php/sshfs
Old links to be sorted:
http://www.debian-administration.org/article/28/Making_scripts_run_at_boot_time_with_Debian
http://www.linux.com/learn/tutorials/442412-managing-linux-daemons-with-init-scripts
http://www.instructables.com/id/Ultimate-Pi-Based-Home-Server/?ALLSTEPS
OpenVPN on DD-WRT:
http://www.dd-wrt.com/wiki/index.php/VPN_%28the_easy_way%29_v24%2B
http://www.dd-wrt.com/wiki/index.php/Iptables_command#Logging
https://forums.openvpn.net/topic12170.html
Stream video AND audio from Pi:
Add SD Card to Linksys router:
http://www.dd-wrt.com/wiki/index.php/Linksys_WRT54G-TM_SD/MMC_mod
Increase FPS for PiCam
http://www.pyimagesearch.com/2015/12/21/increasing-webcam-fps-with-python-and-opencv/
http://www.pyimagesearch.com/2015/12/28/increasing-raspberry-pi-fps-with-python-and-opencv/