dnsmasq

  1. Repurposing 32-bit Laptop as Linux Firewall for Cybersecurity Lab - Configured dnsmasq to act as the primary local DNS resolver for the lab network and implemented domain blocking to create a DNS sinkhole.
  2. Developing Wazuh Decoders and Rules for Lab Firewall - Created custom PCRE2 decoders to extract structured fields from varying dnsmasq log formats and monitored the telemetry for indicators of DNS tunneling and DGA activity.