The /etc/resolv.conf inside instances is set to our private network DNS server. We need to go through it to resolve private DNS queries without further configuration. If the request is for something outside the private network then it is proxied to Google DNS servers.
As a matter of fact, there’s this NetActuate System Status from one of our service provider. I don’t think it should be causing EAI_AGAIN or anything more than increased latency though.