pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
Palo Alto Networks WildFire - Firewall and Threat Intelligence
Burp Suite - Burp Suite is an integrated platform for performing security testing of web applications.
IPFire - IPFire is a server distribution with intended to use as a firewall.
OpenVAS - The Open Vulnerability Assessment System (OpenVAS) is a framework of several services and tools...