Use SSH and set up the proxy to access the compute instance.
Identify the IP address of the node in your domain.
The name of the node is servicename-wls-n, where servicename is the
resource name prefix you provided during stack creation. The Administration
Server runs on the first node, servicename-wls-0
If your domain is on a public subnet, then use the public
IP address of the compute instance.
If your domain is on a private subnet, then use the public
IP address of the bastion and the private IP address of the compute
instance.
Open an SSH connection to the node as the opc user.