There are times when you may want to ban visitors from a certain country from viewing your website, the reasons for this can be many.
You can block people from viewing your website using rules in your firewall IP tables but if you dont have access to that, you can edit the .htaccess file and add [...]

For those of you comfortable on the command line, there’s an alternative way to password a file using the free utility OpenSSL. Say you want to password protect a tar archive of documents called unencrypted-data.tar.
From the command line, type:
$ openssl des3 -salt -in unencrypted-data.tar -out encrypted-data.tar.des3
enter des-ede3-cbc encryption password:
Verifying – enter des-ede3-cbc encryption password:
That command [...]

The Hacker’s Choice has released a Bluetooth Security testing suite that you may be interested in, it is called BlueMaho Project, a GUI-shell (interface) suite of tools for testing security of bluetooth devices and find vulnerabilites, freeware, opensource and written in Python. They have tested it on Debian 4.0 Etch.
BlueMaho Project