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Remote Access

This document covers how to configure remote access to the cluster nodes via SSH and RDP.

SSH Server​

Install​

sudo apt update
sudo apt install openssh-server

Verify​

sudo systemctl status ssh

The output should show the service as active (running) and enabled to start on boot.

Firewall (Optional)​

If the firewall is enabled on your system, open the SSH port:

sudo ufw allow ssh

That's it. The cluster nodes are now accessible via SSH from any machine on the network.

RDP Server (Optional)​

note

This section is only required if the machine has a desktop environment (X server) installed. The control node (node01) runs a full desktop environment and may require RDP access. Compute-only nodes without a display environment can skip this section.

Install​

sudo apt install xrdp

Enable and Start​

sudo systemctl enable --now xrdp

Verify​

sudo systemctl status xrdp

The output should show the service as active (running) and enabled to start on boot.

Firewall (Optional)​

If the firewall is enabled, open port 3389 for incoming RDP traffic:

sudo ufw allow from any to any port 3389 proto tcp