zabbix_dnsbl

External script and template for Zabbix to check if host is blacklisted. It was tested on Zabbix 2.2.16

How it works

This script works as listed below:

• get the ip address of the host
• reverse the address ip
• append the name of blacklist to reversed ip address
• resolve the resulting name in DNS

If the record exitsts - Your host is blacklisted.

Requirements

zabbix_sender host

Centos Requirements

For Centos 6/7 you need to install the package : host yum install bind-utils

How to install

Here are the steps to install it:

• download check_dnsbl.sh, dnsbl.txt and zbx_export_templates.xml
• put check_dnsbl.sh and dnsbl.txt into ExternalScript location (You will find it in zabbix_server configuration)
• make check_dnsbl.sh executable (chmod +x check_dnsbl.sh)
• import zabbix_template (zbx_export_templates.xml) into zabbix
• link template to You servers

Feedback

Feel free to send bugs reports and feature request here:

• https://github.com/sq4ind/zabbix_dnsbl/issues
• mail: sq4ind[AT]gmail.com

ToDo

• correct paths for used programs in script
• add triggers in zabbix template
• ...