WHOIS and DNS Lookup Tool

A command-line interface (CLI) tool written in Rust for performing WHOIS and DNS lookups. This tool provides a simple way to query domain registration information and DNS records.

Features

• WHOIS lookup for domains and IP addresses
• DNS record lookups (A, AAAA, MX, TXT, NS, CNAME)
• Automatic fallback to IANA WHOIS server
• Support for multiple TLD-specific WHOIS servers
• Colored output for better readability

Installation

Ensure you have Rust and Cargo installed on your system. Then clone this repository and build the project:

git clone git@github.com:thinkphp/whois-lookup-tool.git
cd whois-dns-tool
cargo build --release

The compiled binary will be available in target/release/whois-dns.

Usage

WHOIS Lookup

To perform a WHOIS lookup for a domain or IP address:

whois-dns whois example.com

DNS Lookup

To perform a DNS lookup:

whois-dns dns example.com A     # Look up A records
whois-dns dns example.com MX    # Look up MX records
whois-dns dns example.com TXT   # Look up TXT records

Supported DNS record types:

• A (IPv4 addresses)
• AAAA (IPv6 addresses)
• MX (Mail exchange servers)
• TXT (Text records)
• NS (Nameservers)
• CNAME (Canonical names)

Dependencies

• clap: Command line argument parsing
• colored: Terminal text coloring
• trust-dns-resolver: DNS resolution
• anyhow: Error handling
• tokio: Async runtime

Error Handling

The tool implements robust error handling:

• Timeout handling for WHOIS queries
• Fallback to IANA WHOIS server when TLD-specific servers fail
• Informative error messages for DNS lookup failures
• Validation of DNS record types

Supported WHOIS Servers

The tool includes built-in support for various TLD WHOIS servers:

• .com and .net (VeriSign)
• .org (Public Interest Registry)
• .edu (EDUCAUSE)
• .it (NIC.it)
• .uk (Nominet)
• .ru (TCINET)
• .de (DENIC)
• .nl (SIDN)

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT