= DNSBL exporter

Provides an exporter to scan known DNSBL-provides for listing of target-IP.

== Installation

1. You have to installed `ruby` and `bundler`:

	apt install ruby
	gem install bundler

2. Clone the repository to the destination, you want to have installed dnsbl_exporter.

3. Start on boot:
+
	useradd prometheus
	sudo -u prometheus bundle install
	erb dnsbl_exporter.service.erb > /etc/systemd/system/dnsbl_exporter.service
	systemctl daemon-reload
	systemctl enable --now dnsbl_exporter.service

4. In prometheus, define the target-IP as `target`.