Does anyone know the reason why the /etc/resolv.conf is got empty at sometimes and rebooting the instance, it can fill correct values into it, but after a while, it will be empty again, all the instances created by the same AMI have this issue.
the instances are under a VPC, and we have enabled DNS resolution and DNS hostnames, and even ClassicLink DNS Support.
and running dhcpclient doesn't work.
Can someone help? Thanks
 
    