Firewall Presentation

• Topic: History of Firewall Technology
• Date: August 2025
• Description: From Packet Filtering to Application Control
• Download: History_of_Firewall_Technology_RalphBonnell.pdf (box.com link)

DNS Presentation

• Topic: Hacking DNS
• Date: July 2023
• Description: Overview of the DNS protocol and an overview of the DNS Threat Landscape.
• Download: DNS_Security_RalphBonnell.pdf (box.com link)