This project is a feature-rich DNS lookup utility implemented in C++ using the c-ares asynchronous DNS library. It replicates and enhances the functionality of the traditional nslookup tool, while introducing modern capabilities and flexible options.

The tool supports domain resolution for A (IPv4), AAAA (IPv6), and CNAME records, allows the use of custom DNS servers, and enables multiple domain lookups in a single run with clean, readable output.

• ✅ Asynchronous DNS resolution using c-ares for non-blocking performance.
• 🌐 Supports multiple domain arguments via command-line input.
• 📡 Custom DNS server support (e.g., 8.8.8.8 or 1.1.1.1).
• 🔁 CNAME alias parsing: Extracts and displays alias chains from DNS responses.
• 📄 Clean output similar to nslookup, showing both IPv4 and IPv6 addresses along with any aliases.
• 🛠️ Regex-based preprocessing: Automatically strips http:// or https:// from input domains.
• 🧵 Built with multithreading and event-driven design internally via c-ares for maximum efficiency.

./dnslookup example.com www.test.com --dns 8.8.8.8