It would be cool if we could SSH into the temporary host (I'm guessing these hosts currently aren't internet connected to avoid abuse so might not be possible or require some super careful firewalling)
Hello, SadServers guy here. Free VMs are sandboxed (no way in or out other than coming in through the proxy) for security reasons. Paid accounts have VMs with internet access and SSH access (and your pub key is added to all VMs for convenience)