#!/bin/bash IP=$(dig @127.0.0.1 uncached.scdnstest.com +short) if [ "$IP" != "127.0.0.1" ]; then echo "dnsdist_health - CRIT - Unable to resolve uncached.scdnstest.com" exit 2 else echo "dnsdist_health - OK - Able to resolve uncached.scdnstest.com" exit 0 fi