1#@!#!123s

: / usr / lib64 / nagios / plugins /

Filename : check_dns

back

#!/bin/bash

domains=('relay.mailchannels.net' 'mysecurecloudhost.com' 'smtp.antispamcloud.com')

for domain in "${domains[@]}"
do
  if ! resolveip -s "$domain" &>/dev/null ; then
    echo "Failed resolving $domain.";
    exit 2;
  fi
done

exit 0;