Linux

exim Internet Mailer
Computers, Software, Operating Systems, Linux - exim Internet Mailer. Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on UNIX systems connected to the Internet.
https://www.exim.org/
LEAF Linux Embedded Appliance Firewall
Computers, Software, Operating Systems, Linux - Linux Embedded Appliance Firewall. An easy to use embedded Linux network appliance for use in small office, home office, and home automation environments primarily used as a gateway/router/firewall for Internet.
https://leaf.sourceforge.net/
The Mutt E-Mail Client
Computers, Software, Operating Systems, Linux - Mutt E-Mail Client. Mutt is a text-based e-mail client, similar to Elm and Pine.
http://www.mutt.org/
Linux Internet/Network Security Software, Hardware, & Services
Guardian Digital, the premier opensource security company, offers the first secure, open source Internet infrastructure system. Based on Guardian Digital's operatingsystem platform, EnGarde Secure Linux, the company provides customers with server software, network appliances, and services addressingapplication requirements including secure Internet connectivity, user privacy, Web and email functions, VPN connectivity and intrusiondetection.
https://www.guardiandigital.com/
CD-Recordable FAQ
CD-Recordable FAQ, including CD-R and CD-RW, updated monthly
https://www.cdrfaq.org/
DOSEMU Main Page
Computers, Software, Operating Systems, Linux - DOSEMU Main Page. DOSEMU stands for DOS Emulation, and is a linux application that enables the Linux OS to run many DOS programs - including some DPMI apps.
http://www.dosemu.org/