🔍 The Need for Speed / 速度即正义

Whether you are a Red Teamer mapping an attack surface, or an SRE verifying DNS migration for thousands of domains, sequential nslookup is too slow.
无论你是绘制攻击面的红队人员，还是验证数千个域名 DNS 迁移的 SRE，传统的串行 nslookup 都太慢了。

Domain2IP is a specialized Python tool built for parallel bulk resolution.

⚡ Key Features / 核心特性

  • Parallel Workers: Uses ThreadPoolExecutor to resolve domains concurrently. Default: 10 threads, adjustable to 100+.
    并行线程：使用 ThreadPoolExecutor 并发解析。默认 10 线程，可调整至 100+。
  • Detailed Reporting: Separates successful resolutions from failures.
  • Clean Output: Generates pure IP lists for easy piping into other tools (like Nmap or Zmap).
    纯净输出：生成纯 IP 列表，便于管道传输给其他工具（如 Nmap 或 Zmap）。

🏃 Usage / 使用指南

Basic Run

Prepare domains.txt and run:

python domain_resolver.py -i domains.txt -o results.txt

High-Performance Mode (50 Workers)

python domain_resolver.py -i domains.txt -w 50 --verbose

🔗 Pipeline Integration

Combine with nmap for instant scanning:

# Resolve domains -> Filter IPs -> Scan with Nmap
python domain_resolver.py -i targets.txt -o ips.txt
nmap -iL ips.txt -p 80,443 -sV

🔬 Performance Testing

On a standard M1 MacBook Air, resolving 10,000 domains:

  • Sequential: ~45 minutes
  • Domain2IP (50 workers): ~45 seconds

Stop waiting for DNS.
别再等 DNS 了。