QEMU is a generic and open source machine emulator and virtualizer. When used as a machine emulator, QEMU can run OSes and programs made for one machine architecture on a different machine architecture. This is different than VMware, VirtualBox, or Hyper-V where you’re running different operating systems on the same architecture.

The vmrun command makes administering VMware virtual machines fast and easy when you’re stuck dealing with VMware Server 2.0. I really hate the web interface. It’s not responsive and in my opinion, a huge step backwards from the old 1.x consoles.

Accessing the hidden VMware ESXi service console was supposed to be done only while working directly with a VMware technician, but it’s just so darn handy when you’re a command line junkie, that how can you resist right?