eCryptfs is a cryptographic filesystem embedded inside the Linux kernel (versions 2.6.19 and later), it is also a stacked filesystem, which means that eCryptfs is a layer that works on top of other standard, lower file systems, such as ext4, FAT32, XFS and ReiserFS. Some of the great advantadges of eCryptfs over other encryption methods [...]

This is a video tutorial from Christian Brüffer at MeetBSD 2007 in Warsaw, Poland. This video will teach you how to protect your privacy with tor and FreeBSD.

For those interested in staying up to date and taking part in computer security and privacy, these are some active mailing lists that deal with it: Off The Record (Encryption for IRC and IM) This list is used for open discussion about Off-the-Record (OTR) Messaging software. Subscribe at: http://lists.cypherpunks.ca/mailman/listinfo/otr-users Archived mailing list: http://lists.cypherpunks.ca/pipermail/otr-users/ The or-talk [...]

My favourite chat client is irssi, anyone who likes command line and shells will love irssi, it is aso a great tool for IRC operators not only users. Some IRC networks offer you a secure SSL chat but you will need to specify the port for this, the most common ports in IRC  for secure [...]

If you need to choose a password there is a Unix program called mkpasswd that will help you choose a strong one. Some examples: mkpasswd –char=10 This will generate a 10 char random password. You can also try: mkpasswd -s “insertwordhere” This will take the characters from the entered word, and create a password from [...]

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 [...]

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 [...]

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

This tutorial shows how you can use GnuPG to secure and verify data on your Linux box.

This tutorial shows how you can use GnuPG to secure and verify data on your Linux box but the first part is relevant for Windows users too.