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DNS-Check

A small tool for performing active and historical DNS checks on a domain. This can be used for both reconissance or for infrastructure domains to check for potentially IOC'd or sensitive records that could jeapordize an engagement or expose past client operations.

✨ Features

- Fetch A, AAAA, TXT, and CNAME records for a given domain
- Retrieve historical subdomains using AlienVault OTX API
- Save results to a .txt file using the --save flag
- Easy-to-use CLI with clap argument parsing

🚀 Installation

Prerequisites

  • Rust & Cargo (Install via rustup)
  • An AlienVault OTX API Key (Sign up at otx.alienvault.com) - Not a hard requirement as the endpoint is avaliable without a valid API key.

Clone & Build

git clone https://github.com/RedHeadSec/Domain-Check.rs.git
cd dns-lookup-tool
cargo build --release

🛠 Usage

Basic DNS Lookup

target/release/Domain-Check -d redheadsec.tech -A OTX_KEY

Note: An API key is now required to hit the passive_dns endpoint, else you will see 429 response codes.

image

Save Results to a File

DNS-Check --domain example.com --save --file my_results

  • 🔹 Saves the output to my_results.txt.
  • 🔹 If no file name is provided, defaults to results.txt.

To-do

Implement SecurityTrails Records

📄 License

MIT License - Use freely, but give credit please.