Write robust bash scripts

http://www.davidpashley.com/articles/writing-robust-shell-scripts.html

Speed up your wi-fi (Ubuntu)

http://linux-software-news-tutorials.blogspot.com/2012/01/wifi-ubuntu-slow-heres-solution.html

WebDAV with Lighttpd on Squeeze

http://www.howtoforge.com/how-to-set-up-webdav-with-lighttpd-on-debian-squeeze

Block cold boot attacks

http://linuxaria.com/howto/protect-linux-from-cold-boot-attacks-with-tresor

Vinux installation walkthrough

http://all-things-linux.blogspot.com/p/vinux-321-install-guide.html

WordPress security tips

http://blog.softlayer.com/2012/tips-and-tricks-how-to-secure-wordpress/

Using find

http://www.tuxarena.com/2012/03/tutorial-using-the-find-command/

Secure private chat

http://www.techdrivein.com/2012/03/retroshare-open-source-tool-to-securely.html