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• A VM host is a physical computer running a VMware hypervisor
• A VCL computer entry must be added for each VM host (Manage Computers > Edit Computer Information)
• After the computer has been added to VCL, it is designated as a VM host by changing the computer state to vmhostinuse (Manage Computers > Computer Utilities)

VM

• A VM is a virtual machine managed by VCL
• A computer entry must be added to VCL for each VM (Manage Computers > Edit Computer Information)
• Each VM must be assigned to a VM host (Virtual Hosts > VM Hosts tab > Configure Host)
• VMs do not need to be created manually in VMware, VCL automatically creates and deletes VMs

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• Create an SSH key pair on the management node (or use a key you previously created):

  Tip
  ssh-keygen -t rsa -f /etc/vcl/vcl.key -N '' -b 1024 -C 'VCL root account'

• Log into the ESX host via SSH (password authentication should work) and create the directory:

  Tip
  ssh <ESXi host> 'mkdir /.ssh'

• Copy the public key to the ESXi host:
  ESXi 4.x:

  Tip
  scp /etc/vcl/vcl.key.pub <ESXi host>:/.ssh/authorized_keys

  ESXi 5.x:

  Tip
  scp /etc/vcl/vcl.key.pub <ESXi host>:/etc/ssh/keys-root/authorized_keys

• Test making an SSH connection using the key:

  Tip
  ssh -i /etc/vcl/vcl.key <ESXi host>

IMPORTANT: Under ESXi 4.x, the authorized_keys file is erased when the ESXi VM host is rebooted. Complete the following steps to make the authorized_keys file persistent:

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