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Ozy-666/README.md

Systems & Network Architect // Ozy-666

TSI Alumnus (Class of '05, IT). Designing and maintaining highly available, high-concurrency edge infrastructure. Specialized in zero-allocation Go network daemons, high-QPS Linux kernel tuning (XDP, nftables), and radical codebase stripping to eliminate runtime overhead and security attack surface.


🛡️ Active R&D: High-Throughput L4 / L7 DDoS Mitigation

  • Layer 4 Kernel-Space (eBPF/XDP): Developing ultra-low-latency packet-filtering engines in Go that leverage eBPF/XDP to drop volumetric garbage (SYN floods, UDP amplification) directly at the NIC driver level—long before the Linux kernel allocates sk_buff structures.
  • Layer 7 Application-Space (Go/Nginx): Crafting high-concurrency user-space HTTP/DoH sanitization engines designed to rate-limit and filter malicious application-layer requests using zero-allocation byte parsers.
  • Dynamic nftables Orchestration: Direct integration of the Go control plane with Linux nftables via Netlink sockets, dynamically pushing real-time blacklists directly to kernel-space sets to isolate malicious actors at scale with minimal CPU overhead.

🤖 AI-Collaborative Systems Development

  • Advanced static analysis, performance profiling, and runtime architecture refactoring executed in seamless integration with Claude Code and Gemini API / AI Studio CLI tooling.

⚙️ Main Production Showcase: DNSDOH.ART

  • A globally distributed, independent encrypted DNS infrastructure supporting high-performance anycast routing over DoH3 (QUIC), DoH, DoQ, and DoT.

🧰 Custom Hardened Go Stack

  • AdGuardHome-edge-spec — blueprint and modifications for an elite, stripped-down edge resolver (--13k LOC).
  • dnscrypt-proxy — custom fork with sync.Pool packet buffers (0 B/op on hot paths) and compiled-out monitoring.
  • urlfilter — high-frequency rule matching engine patched with AST-based regex shortcut extraction (O(1) miss paths).
  • dns-ultra — a high-precision DNSCrypt/DoH benchmarking and auto-tuning suite.

QA & Process Inspection: Maine Coon Michelle 🐾. Strict control over system uptime, stability, and runtime allocation constraints.

Pinned Loading

  1. AdGuardHome-edge-spec AdGuardHome-edge-spec Public

    Public specification and optimization logs of the private AdGuardHome & dnsproxy fork used in dnsdoh.art

  2. dns-ultra dns-ultra Public

    Find the fastest DNS resolvers for your dnscrypt-proxy setup. Works great with Unbound and AdGuardHome stacks - tests real queries, not synthetic pings.

    Shell

  3. dnscrypt-proxy dnscrypt-proxy Public

    Forked from DNSCrypt/dnscrypt-proxy

    Forked version of dnscrypt-proxy 2 used in AdguardHome-edge

    Go

  4. dnsproxy dnsproxy Public

    Forked from AdguardTeam/dnsproxy

    Simple DNS proxy with DoH, DoT, DoQ and DNSCrypt support.

    Go