Auto-detects DNS server (BIND vs dnsmasq) and generates appropriate
blocklist format:
- BIND: Response Policy Zone (RPZ) with NXDOMAIN responses
- dnsmasq: addn-hosts sinkhole file (existing)
Tested with 46,067 blocked domains on BIND named server.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Replace defunct malwaredomains feed with ThreatFox (abuse.ch)
- Add is_valid_domain() function to validate domain format
- Optimize intel_merge() with batch SQL transactions
- Previous: 765 domains with invalid entries (HTML parsing artifacts)
- Now: 46,056 valid domains from 3 feeds (URLhaus, OpenPhish, ThreatFox)
Performance: Batch import completes in seconds vs minutes for 45K+ domains.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Phase 1 implementation of Vortex DNS Firewall - SecuBox's first line
of defense blocking threats at DNS level BEFORE any connection is
established.
Features:
- Threat intel aggregator (URLhaus, OpenPhish, Malware Domains)
- SQLite-based blocklist database with domain deduplication
- dnsmasq integration via sinkhole hosts file
- x47 vitality multiplier concept (each DNS block prevents ~47 connections)
- RPCD handler for LuCI integration with 8 methods
- CLI tool: vortex-firewall intel/stats/start/stop
Tested with 765 blocked domains across 3 threat feeds.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
