ESET Antivirus

ESET NOD32 Anti-virusdelivers the best proactive protection against increasingly sophisticated threats and is known for being fast and unnoticeable. It lets you focus on things you care about, not your antivirus. The software uses a powerful combination of advanced heuristic technologies and automatic updates of malware signature databases, detecting and eliminating a rapidly growing number of unknown threats. Its proactive capabilities protect your computer and data even against never before seen malicious code

Untangle

Untangle provides a powerful suite of Internet management applications for small-to-medium businesses and education institutions.

The Untangle Server is a multi-function firewall. It simplifies and consolidates the many network and security products that businesses need at the gateway to the Internet. 

Untangle has 3 network deployment options:

• Router: Dedicated server that performs routing & firewall services
• Transparent Bridge: Dedicated server that drops seamlessly behind existing routers & firewalls
• Re-Router™: Adds network-wide protection while running on an existing desktop (runs on Windows)