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dnc
 
 
 
 

dnc

Description

dnc (Domain Name Checker), is a CLI tool to check domain names configuration.

Requirements

dnc requires Python 3.5+ and the following Python modules:

  • Dnspython
  • PrettyTable
  • pyOpenSSL

Usage

dnc [-46hmnsv] domain

The options are as follows:

-4	Resolve and display A records (IPv4 addresses).
-6	Resolve and display AAAA records (IPv6 addresses).
-h	Display usage.
-m	Resolve and display MX records (Mail Exchange).
-n	Resolve and display NS records (Name Servers).
-s	Display SSL/TLS certificate expiration date.
-v	Display version.

Example

Here is the output of running dnc querying NS and A records, along with SSL certificate expiration date for two domains:

$ dnc -n4s cambus.net toolchains.net
+----------------+--------------------------+---------------+------------+
| Domain         | NS                       | IPv4          | TLS        |
+----------------+--------------------------+---------------+------------+
| cambus.net     | oxygen.ns.hetzner.com.   | 116.203.5.115 | 2021-04-23 |
|                | hydrogen.ns.hetzner.com. |               |            |
|                | helium.ns.hetzner.de.    |               |            |
+----------------+--------------------------+---------------+------------+
| toolchains.net | oxygen.ns.hetzner.com.   | 116.203.5.115 | 2021-04-23 |
|                | helium.ns.hetzner.de.    |               |            |
|                | hydrogen.ns.hetzner.com. |               |            |
+----------------+--------------------------+---------------+------------+

License

dnc is released under the BSD 2-Clause license. See LICENSE file for details.

Author

dnc is developed by Frederic Cambus.

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CLI tool to check domain names configuration

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