This document guides the cloud users how to create a basic Virtual Machine (VM) instance, configure remote access, and attach external datastore.

1. Log in to Cloud Dashboard & External Datastore

2. Import Public Key or Create a Key Pair 

• Go to Project → Compute → Key Pairs of Cloud Dashboard main menu. Import the SSH public key (same one you registered during account sign-up) or create another key pair.

3. Create a VM instance

• Go to Project → Cluster Infra → KASI Cluster Templates menu (Step A), and click Lauch Cluster Stack button of KASI-SingleVM template (Step B). Choose Next to go to Lauch Cluster menu.

• (Step C) Put a Stack Name and the Password for user. Select an OS Image (e.g., ubuntu-20.04-cloudimg), Flavor (e.g., C2M2D20 = 2 CPUs, 2 GB RAM, 20 GB OS drive), Network (default: kasi-user-network), and SSH Keys.

• Put a Temporary one-time password for root account, and click Launch button.

  WARNING: The intial password may be exposed to other users. You MUST change the password to a secure one right after loggin in to the console for the first-time.

  
  

4. Configure the VM instance for remote desktop & external datastore

• (Step A) Go to Project → Compute → Instances menu, and check your VM instance is in Running Power State (Step A). From the Actions pull-down menu, choose Console.

• (Step B) Click on the black console screen, and log in with root username and temporary password.

• First, change the root password and update the OS. Create a user account. Install desktop environment & remote desktop server.

  ### Change root password $ passwd ### Update OS $ apt update && apt -y dist-upgrade ### Create a user account (recommended) : adduser {username} $ adduser kasi-user ### Grant sudo privilege to the user : usermod -aG sudo {username} $ usermod -aG sudo kasi-user ### Install dekstop environment (minimal installation is recommended) $ apt install xfce4 --no-install-recommends ### Install remote desktop server (RDP) $ apt install xrdp ### Reboot $ reboot

  
  

• (Step C) After reboot, log in to the console with the user account, and configure SMB client to mount user's external datastore.

  ### Install required pacakges : cifs-utils, smbclient $ sudo apt -y install cifs-utils smbclient ### Create a mount directory $ mkdir NAS ### Mount external datastore : mount.cifs -o rw,uid={local user},username={NAS user} {NAS address} {mount directory} $ sudo mount.cifs -o rw,uid=kasi-user,username=kasi-user //210.219.33.249/home NAS ### For more mount options : man mount.cifs ### Check if external datastore is mounted and the user has write permission $ df -H ; ls -l ### DO NOT forget to log out $ exit

  
  

  WARNING: NEVER leave the console screen logged in. Other users CAN access your console.

  
  

5. Remote access to VM instances via SSH tunneling

• Prepare the SSH keys (the same ones you registered in sign-up form). If you want to register another key pairs, e-mail the SSH public key file to Administrator(chr@kasi.re.kr).

• (Step A) Go to Project → Compute → Instances menu, and find the public IP address (e.g., 210.219.33.X) of project gateway (e.g., User Project Gateway) from the instance list.

• (Step B) Install Remote Desktop Protocol (RDP) client software to your local computer, and set up the remote connection.

  • (Step B) If RDP clients support SSH tunneling – remmina (Linux), MobaXterm (Windows), configure RDP session as follows:
    • Remote host address (10.0.X.X) : VM instance private IP (port 3389)
    • Remote host username : user account you created (recommended) or root
    • SSH gateway address (210.219.33.X) : project gateway public IP (port 7774)
    • SSH gateway username : kasi

  • If RDP clients do not support tunneling – CoRD (Mac), Microsoft Remote Desktop (Mac), create a SSH tunneling port first and connect through the local port. 

    ### SSH tunneling : ssh -i {private key} -N -L {local RDP port}:{VM instance private ip}:{RDP port = 3389} {tunneling id = kasi}@{gateway ip} -p {ssh port = 7774} $ ssh -N -L 12345:10.0.100.42:3389 kasi@210.219.33.122 -p 7774 ### Open RDP connection through localhost:{local RDP port} $ open rdp://localhost:12345

    
    

• (Step C) Connect to the RDP host, and check everthing (e.g., desktop environment, external datastore,...) works fine.

  
  

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