Awesome
DNS Check
This code powers the DNS check of the Public DNS list service. It is written in Go and it scales very well.
Dependencies
- Go-MySQL-Driver
- Go-YAML v2
- DNS library by Miek Gieben
- MaxMind DB Reader for Go
- GeoLite2 by MaxMind, available from http://www.maxmind.com
- A MariaDB/MySQL database
Configuration
Database configuration
The program is intended to be part of a Rails application.
So you need a database.yml
with the credentials for your database.
Using a socket
development:
socket: /var/run/mysqld/mysqld.sock
database: nameservers_development
username: root
password:
Using a tcp connection
production:
host: 127.0.0.1
database: nameservers
username: nameservers
password: topsecret
Database scheme
After creating the database apply the structure.sql:
mysql $database < structure.sql
Domain list
Create a list of domains to query the nameservers for. You should include at least one domain that does not exist. All of the domains should resolve to the same IP addresses (not location based / GeoIP).
non-existent.example.com
wikileaks.org
rotten.com
Usage
Replace env
with your environment name (e.g. development or production) and pass the path to your database.yml.
dnscheck -h
prints a list of all supported arguments.
RAILS_ENV=env dnscheck check --domains path/to/domains --database path/to/database.yml --geodb path/to/GeoLite2-City.mmdb