dnsqry

A fast and simple DNS query tool written in Rust.

Description

dnsqry is a command-line DNS lookup utility that provides clean, formatted output for various DNS record types. It's designed to be simple, fast, and easy to use for both quick lookups and scripting.

Installation

Build from source

1. Make sure you have Rust installed. If not, install it from rustup.rs

2. Clone this repository:

   git clone <repository-url>
   cd dnsqry

3. Build the project:

   cargo build --release

4. The binary will be available at target/release/dnsqry

5. Optionally, install it to your PATH:

   cargo install --path .

Usage

dnsqry <domain> <record_type>

Arguments

• domain: The domain name to query (e.g., google.com, example.org)
• record_type: The DNS record type to query (A, AAAA, NS, MX, TXT, CNAME, SOA, PTR, etc.)

Examples

Query A record (IPv4 address):

$ dnsqry google.com A
A google.com. 3m01s   142.251.222.206

Query NS records (name servers):

$ dnsqry google.com NS
NS google.com. 39m57s   "ns1.google.com."
NS google.com. 39m57s   "ns2.google.com."
NS google.com. 39m57s   "ns3.google.com."
NS google.com. 39m57s   "ns4.google.com."

Query AAAA record (IPv6 address):

$ dnsqry google.com AAAA
AAAA google.com. 2m15s   2607:f8b0:4004:c1b::65

Query MX records (mail servers):

$ dnsqry google.com MX
MX google.com. 10m30s   10 "smtp.google.com."

Query TXT records:

$ dnsqry google.com TXT
TXT google.com. 5m00s   "v=spf1 include:_spf.google.com ~all"

Query CNAME record:

$ dnsqry www.github.com CNAME
CNAME www.github.com. 1h00m00s   "github.com."

Supported Record Types

• A: IPv4 address records
• AAAA: IPv6 address records
• NS: Name server records
• MX: Mail exchange records
• TXT: Text records
• CNAME: Canonical name records
• SOA: Start of authority records
• PTR: Pointer records (for reverse DNS)
• And other standard DNS record types

Output Format

The output format is designed to be both human-readable and script-friendly:

<RECORD_TYPE> <DOMAIN> <TTL>   <DATA>

Where:

• RECORD_TYPE: The DNS record type (A, NS, MX, etc.)
• DOMAIN: The queried domain name
• TTL: Time-to-live in human-readable format (e.g., 3m01s, 1h30m45s)
• DATA: The record data (IP addresses, hostnames in quotes, etc.)

Error Handling

The tool provides clear error messages for common issues:

• Invalid record types
• DNS resolution failures
• Network connectivity problems
• Malformed domain names

License

MIT

Contributing

Contributions are welcome! Please feel free to submit issues and pull requests.