"Some websites need to handle data securely and assure the end-user they are a) secure and b) who they say they are. The traditional way to achieve these is via Secure Socket Layer. Firefox 3 changed what happens when a self-signed SSL certificate is encountered. It’s a change which has caused some concern and much discussion.

This how-to will guide you through the entire process of setting up a secure website using SSL and digital certificates. This guide assumes that you have already a fully functional (and configured) server running Apache, BIND, and OpenSSL. Just as a side note, this guide was written based on a Fedora Core 6 distribution, but should be the same for most other distros out there.

FTP communication is not secure, all communication is plain text and can be easily captured. Despite this serious weakness, few do anything to secure it. There are simple ways to correct this with VSFTPD.FTPS is also known as FTPS Secure or FTP-SSL. What FTPS does is add the Transport Layer Security (TLS) and the Secure Sockets Layer (SSL) to the normal FTP on the same port 21.

In today's time of rampant information crimes, including identity theft, security is more important to the average computer user than ever. This tutorial shows how you can use GnuPG to secure and verify data on your Linux box.

The secure shell is much more than a simple way to keep your passwords to yourself. For instance, it's possible to tunnel ports you may not have access to (if the machine is behind a firewall) through the SSH port. SSH makes it possible to run remote graphical sessions easily. You can even securely log in without a password. SSH is a veritable Swiss Army knife of OS toys.

I have downloaded the beta of Firefox 3 to check out the improvements related to SSL. First, there's the added support for Extended Validation SSL certificates, but I am not very excited about that (I wrote about this previously in Extended Validation SSL certificates not going anywhere, as predicted).

RetroShare is a Open Source cross-platform, private and secure decentralised communication platform.It lets you to securely chat and share files with your friends and family, using a web-of-trust to authenticate peers and OpenSSL to encrypt all communication.

The GNU Privacy Guard is GNU's tool for secure communication and data storage. It can be used to encrypt data, create digital signatures, help authenticating using Secure Shell and to provide a framework for public key cryptography. It includes an advanced key management facility and is compliant with the OpenPGP and S/MIME standards.

OpenSSH is a great tool for remotely logging in to other computers in a secure manner and then being able to use them from anywhere around the world. What the ssh command doesn’t offer you normally however is a way to securely transfer files between your local machine and the remote machine.