Check_MK Parent/Child configuration for AWS VPC VPN

This solution was required on a network where there was a Pfsense Gateway with dual IPsec Tunnels to an Amazon VPC. Each time there was a VPN outage (Either caused by broadband failure at the office, or Amazon maintenance) there was over 200 notification emails sent (For servers being inaccessible then accessible again from the Read more about Check_MK Parent/Child configuration for AWS VPC VPN[…]