After using LibreNMS for years and it was giving me issues, I decided to give check_mk RAW a try. It works great. I was able to find a way to have check_mk check for Domain Expiry. The original post is HERE, but the formatting wasn’t working so I reposted it. nano /scripts/check-domain-expiry After you have edited this file make sure to add it to a daily crontab. We don’t check the every check cycle since you’d probably get blocked due to high requests.