Software is the key to protecting your systems and asserting your right to control what can access your computer, e-mail box, network, etc.
- exim - The mail server software of choice for the SOSDG & AHBL. Can support many configurations and complex access control lists.
- SpamAssassin - Perhaps the most popular spam filtering software to integrate with UNIX mail systems, scores messages by content, allowing administrators and users extremely fine-grained control over their incoming e-mail.
- SpamAssassin/SOSDG Filters - Our custom filters we use on our own systems. Compiled from our own traps, these filters are very safe to use and updated often.
- Firewall/SOSDG - Our premiere firewall for Linux machines using iptables/netfilter. Easy to use, easy to setup, and highly customizable.