Can I do this with Linux?

The Linux Alternative Project - linuxalt.com

A list of Linux equivalents and alternatives to the popular Mac and Windows software from companies like Adobe and Microsoft.

Today's Link source: del.icio.us

List of 103 Free Security Programs for Windows, Mac and Linux

103 Free Security Apps for Mac, Windows and Linux

Wow!
I'm probably a little naive about computer security since I use a Mac, and they've been resistant to viruses and malware so far.
No matter what your platform, today's link offers links to give you protection from Spyware, Viruses, Rootkits, intruders and web surveillance. There are also ways to increase your security for email, networks, virtual private networks, and wireless networking, and there is firewall software and encryption software.
All of these are available at my favourite price, free.