I have a scenario: I have a Debian Etch server using ISPConfig. I have a client that wants a Virtual Dedicated Server, not unlike those available thru GoDaddy, etc. My question is, can I without destroying what I currently have configured repartition my hard drive to add a seperate partition, yet I need this one to be available online at the same time as my current system. I have only one public IP address. And, my client wants cPanel with WHM. Can this be done?? Thanks.
The problem is that you only have one IP address. You could use NAT and give the vm a private IP address, but then you must forward the needed ports to the vm which means these ports cannot be used on the host system anymore. For example, if you have an Apache on the host and another one on the vm, and you forward port 80 to the vm, then you cannot reach the Apache on the host system anymore.