Zns: CLI tool for querying DNS records with readable, colored output

Published at

5 days ago

Main Article

zns

zns is a command-line utility for querying DNS records, displaying them in a human-readable, colored format that includes type, name, TTL, and value.

Features

Supports various DNS record types
Colorized and tabular output for easy reading
Concurrent queries for improved performance
JSON output format for machine-readable results
Option to write output to a file
Option to query a specific DNS server

Installing

brew install zns

Usage

$ zns example.com
A      example.com.   36m22s      93.184.215.14
NS     example.com.   22h27m45s   a.iana-servers.net.
NS     example.com.   22h27m45s   b.iana-servers.net.
SOA    example.com.   01h00m00s   ns.icann.org. noc.dns.icann.org.
MX     example.com.   22h00m56s   0 .
TXT    example.com.   24h00m00s   v=spf1 -all
TXT    example.com.   24h00m00s   wgyf8z8cgvm2qmxpnbnldrcltvk4xqfn
AAAA   example.com.   17m11s      2606:2800:21f:cb07:6820:80da:af6b:8b2c

Query a specific record type

$ zns example.com -q NS
NS   example.com.   21h13m27s   a.iana-servers.net.
NS   example.com.   21h13m27s   b.iana-servers.net.

Use a specific DNS server

$ zns example.com -q NS --server 1.1.1.1
NS   example.com.   23h11m50s   a.iana-servers.net.
NS   example.com.   23h11m50s   b.iana-servers.net

JSON output

$ zns example.com --json -q A | jq
{
  "@domain": "example.com",
  "@level": "info",
  "@message": "Successful query",
  "@record": "93.184.215.14",
  "@timestamp": "2024-12-17T01:04:06.104173+01:00",
  "@ttl": "33m10s",
  "@type": "A",
  "@version": "dev",
  "@view": "json"
}
...

Writing to a file

export ZNS_LOG_FILE=/tmp/zns.log
$ zns example.com

Contributing

Contributions are highly appreciated and always welcome. Have a look through existing Issues and Pull Requests that you could help with.

License

This project is licensed under the MIT License. You are free to use, modify, and distribute the software, provided that you include the original license in any copies of the software. See the LICENSE file for more details.

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