Deploying RFC1918/RFC6890 reverse DNS sinkhole with AS112 using exabgp: configuring anycasted 192.175.48.0/24 and 2620:4f:8000::/48 prefixes, implementing exabgp-healthcheck for DNS service monitoring, and advertising BLACKHOLE routes only when service is operational.
Building Port Scan as a Service with RabbitMQ message queuing: nginx/PHP-FPM frontend validates and queues scan requests via php-amqplib, backend workers execute nmap scans immediately, with automatic job retry on failure and SQL result storage.
Starting macOS built-in TFTP server using launchctl: loading tftp.plist from System/Library/LaunchDaemons, starting com.apple.tftpd service, and using default /private/tftpboot directory for file transfers.
Researching Canadian BGP routing over four years: evolving from exabgp JSON piped to CouchDB, to MySQL database ingestion, to automated province-by-province ASN status page generation with git-tracked history and BGP growth analysis.
Building anycasted highly-available recursive DNS with dnsdist load balancers and exabgp: using BGP MED-based failover across 4 dnsdist nodes with PowerDNS recursor backends, custom orderedwrandom load balancing policy, and automated healthchecks for route withdrawal.
