CentOS 5.3 now comes with disk encryption. When you install the operating system you have the option to encrypt block devices, partitions that you create. Block device encryption requires a passphrase or key as authentication in order to access the data on that partition.

TrueCrypt is a free opensource software system for establishing and maintaining an on-the-fly-encrypted volume (data storage device). On-the-fly encryption means that data are automatically encrypted or decrypted right before they are loaded or saved, without any user intervention.

One of the best ways to protect sensitive computer data like credit card numbers and social security information is to use encryption software. Encryption software executes an algorithm that is designed to encrypt data in such a way that it cannot be recovered (decrypted) without access to the key. It is a main component of all aspects of file protection and computer communication.

This article will describe a configuration of Virtual Private Network connection by using an OpenVPN application. Firstly, you will be exposed to some basic theory behind Virtual Private Networks. Then, the article will guide you with step-by-step instructions on how to setup a OpenVPN virtual private network by using Symmetric Key Encryption and Public Key Encryption.

Ubuntu 7.10 had introduced support for install-time encryption to provide a fully encrypted LVM. However, this feature was only available through Ubuntu's alternate CD installer and not Ubiquity, Ubuntu's popular LiveCD installer. We had hoped the disk encryption support would be added in Ubuntu 8.04 and then later Ubuntu 8.10, but that never occurred.

TrueCrypt is open source software for on-the-fly encryption. TrueCrypt can use an encrypted file or partition and mount it for use transparently by any application. The Windows version has a fancy GUI, but on Linux there is a good command line interface.

TrueCrypt is a software system for establishing and maintaining an on-the-fly-encrypted volume (data storage device). On-the-fly encryption means that data are automatically encrypted or decrypted right before they are loaded or saved, without any user intervention.

Seahorse is a GNOME application for managing encryption keys. It also integrates with nautilus, gedit and other places for encryption operations.

This Ubuntu 9.10 Mini-Course will help you set up a secure an Ubuntu 9.10 Server using Postifx, Dovecot and Thunderbird with TLS and SMTP AUTH. The goal of this configuration is to create a secure mail server using encrypted communication to retrieve mail and to send mail through your mail server.