I have a puppet-master puppet agent setup in AWS VPC. The system has been running for the last 2 years without too many issues, but today the master will not accept a certificate request from any of the agents once they are launched saying "Could not resolve x.x.x.x: no name for x.x.x.x"
The puppet master is specified in the puppet.conf for the agent. I can see in the logs for the master that the agent does in face reach, but the master "rejects" and does not sign a certificate from an instance in a subnet which it usually accepts. Ive also tried to remove the certs from the master running "puppet cert clean ip-x-x-x-x.ap-in..." and re trying manually from the agent. The agent tries to connect and then says "Exiting;no certificate found and waitforcert is disabled"
