Procedure

1. Create an SSH key pair.
   On the main menu of ZStack Cube Ultimate, choose Resource Center > Resource Pool > Security > SSH Key. On the SSH Key page, click Create SSH Key. Then, the Create SSH Key page is displayed.
   On the displayed page, set the following parameters:

   • Name: Enter a name for the SSH key.
   • Creation Method: Choose Generate New SSH Key Pair. The system will creates a public key and a private key. The public key is saved on the Cloud and the private key is downloaded to local as a file called ${SshKeyName}.pem.
     Note: If you have had an SSH Key pair generated outside the Cloud, you can choose Import Existing SSH Key, copying and pasting the public key in Public Key.

   Click OK to create the SSH key.

   
   
   

2. Attach the SSH public key to the target VM instance.
   On the SSH Key page, locate the SSH key you created in the step 1, click Actions > Attach VM Instance, and select the VM instance to attach the SSH public key to it. You do not need to reboot the VM instance to make the public key take effect.

   Note:

   • Select a Linux VM instance.
   • Make sure that the VM instance is running.
   • Make sure that the VM instance has a Qemu Guest Agent (QGA) installed and the QGA. You can install the QGA by installing the GuestTools for the VM instance. If you install through another method, make sure that the QGA you use is of 2.5 or a latter version.
3. Upload the SSH private key to the access terminate.
   The SSH private key has been automatically downloaded to local in the step1. If you do not use the local computer as the access terminate, upload the private key file to the access terminate. If you use the local computer as the access terminate, skip this step.
4. Log in to the VM instance from the access terminate.
   This step varies based on the operating system of the access terminate. This topic describes the login method from a Linux terminate and from a Windows terminate.

   • If your access terminate runs a Linux operating system, run the following command in the access terminate:

     # ssh -i ${private_key.pem} ${UserName}@${IpAddress}
     # Access the target VM instance with the private key. ${private_key.pem} refers to the private key file path, ${UserName} refers to the username, and ${IpAddress} refers to the IP address of the VM instance.

     Note: You can log in to the target VM instance only as a root user.
   • If your access terminate runs a Windows operating system, follow these steps:
     1. Launch the Powershell in the access terminate.
     2. Run the following command:

        # ssh -i ${private_key.pem} ${UserName}@${IpAddress}
        # Access the target VM instance with the private key. ${private_key.pem} refers to the private key file path, ${UserName} refers to the username, and ${IpAddress} refers to the IP address of the VM instance.

        Note: You can log in to the target VM instance only as a root user.